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Human Resource Management and Statistics Applications

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This solved assignment delves into the intersection of human resource management (HRM) and statistical analysis. It examines how statistical concepts are applied in various HRM functions, including risk management within organizations and evaluating factors influencing job types within informal employment sectors. The assignment draws upon academic sources like Beardwell & Thompson's 'Human Resource Management: A Contemporary Approach' and Haimes' 'Risk Modeling, Assessment, and Management' to provide a comprehensive understanding of the topic.

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Statistics for Management

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TABLE OF CONTENTS
INTRODUCTION...........................................................................................................................1
TASK 1 EVALUATION OF ECONOMIC DATA AND BUSINESS DATA...............................1
b) Gap between male and female annual earning...................................................................4
TASK 2 ANALYSE AND EVALUATE RAW BUSINESS DATA USING NUMBER OF
STATISTICAL METHODS............................................................................................................6
A. (i) Use an Ogive to estimate the median hourly earnings..................................................6
A. (ii) Calculate the mean and standard deviation for hourly earnings..................................8
B. Comparative analysis.........................................................................................................9
A) Scatter diagram..................................................................................................................9
(B). Line of best fit...............................................................................................................11
(C) Calculation of turnover at a size of 30 sqm....................................................................11
(D). Calculation of correlation coefficient...........................................................................11
(E). Statistical validity of prediction and discussion of two factors that affect turnover.....12
TASK 3 APPLICABILITY OF STATISTICAL METHODS IN BUSINESS PLANNING........12
A. Number of delivery in a current year...............................................................................13
B. Number of bottles delivery delivered with each delivery................................................13
C. Economic Order Quantity calculation.............................................................................13
D. Comparison between current operating model and economic order quantity................14
TASK 4 COMMUNICATE APPROPRIATE FINDINGS...........................................................15
a) Scatter diagram.................................................................................................................15
C. Ogive graph......................................................................................................................17
CONCLUSION..............................................................................................................................17
REFERENCES..............................................................................................................................18
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Index of Figures
Figure 1 Gross annual earnings of male..........................................................................................2
Figure 2 Gross annual earnings of female.......................................................................................3
Figure 3 Gross annual earnings of male and female in public sector..............................................4
Figure 4 Gross annual earnings of male and female people in private sector.................................5
Figure 5 Ogive graph showing relative cumulative frequency........................................................7
Figure 6 Scatter diagram................................................................................................................10
Figure 7 Scatter diagram with line of best fit................................................................................11
Figure 8 Scatter diagram between floor space and turnover.........................................................15
Figure 9 Male gross annual earnings in public sector...................................................................16
Figure 10 Ogive graph...................................................................................................................17
Index of Tables
Table 1 Change in gross annual earnings of male...........................................................................1
Table 2 Change in gross annual earnings of female........................................................................3
Table 3 Gap between male and female annual earnings in public sector........................................4
Table 4 Gap between male and female annual earnings in public sector........................................5
Table 5 Calculation of cumulative frequency..................................................................................6
Table 6 calculation of mean.............................................................................................................8
Table 7 Calculation of standard deviation.......................................................................................8
Table 8 calculation of correlation coefficient................................................................................11

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INTRODUCTION
In corporate sector, business managers need to devise multitude of plans, policies and
strategies which require comparative evaluation of multiple of alternatives and thereby choose
the most appropriate ones which fuel business growth. Statistics plays a key role in the science of
decision making process wherein top authority uses various statistical tools and methods i.e.
descriptive and inferential statistics to examine their progress (Beardwell and Thompson,
2014).This report aims at examining business results through applying various statistical
methods so as to make appropriate decision making. Moreover, on the basis of various charts,
graphs and tables, necessary findings will be figure out properly.
TASK 1 EVALUATION OF ECONOMIC DATA AND BUSINESS DATA
There are two types of data in which it is collected, analysed and therefore utilised for
specific purposes. Types of data are: Primary Data: Original data that has been collected for a specific purpose from an
original source as raw. Data collected in this way is known as primary data (Embrechts
and Hofert, 2014). These are conducted through regular basis interviews, questionnaire,
surveys conducted by organisation and other various sources. Mostly they are conducted
as feedback for the products or services launched in the market or to know the view
regarding any services or product necessity.
Secondary data: Data that are collected from the other available sources such as firm's
database, via books and journals, from financial statements of firms and internet blogs
are called secondary data. In simple words, the data which is already there in organised
form and thus utilising it for specific concern.
a) Change in gross annual earnings in the public and private sector since 2009
As per Office of National Statistics report, the gross annual earnings in the public and
private sector are fluctuating since 2009.
Table 1 Change in gross annual earnings of male
Particulars
Public
sector
Year on
Year
absolute
change
Year-on-
Year
growth
Private
sector
Year on
Year
absolute
change
Year-on-Year
growth
2009 30638 27362
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2010 31264 626 2.04% 27000 -362 -1.32%
2011 31380 116 0.37% 27233 233 0.86%
2012 31816 436 1.39% 27705 472 1.73%
2013 32541 725 2.28% 28201 496 1.79%
2014 32878 337 1.04% 28442 241 0.85%
2015 33685 807 2.45% 28881 439 1.54%
2016 34011 326 0.97% 29679 798 2.76%
Figure 1 Gross annual earnings of male
On the basis of above table, it can be seen from the public sector data that gross annual
earnings of male shows consistently an increasing trend but at fluctuating rate. In 2010, it shows
a YOY growth of 2.04% thereafter, shows lower increase by 0.37% and 1.39%. In 2012,
earnings have been increased at good percentage to 2.28%, then again at less percentage growth
to 1.04%. Over the given period, earnings show highest growth in the year 2015 by 2.45%
whereas in last year, it was increased by 0.97% only. However, looking to the private sector, in
2010, gross annual earning has been decreased per male from £27,362 to £27,000 by £362
(1.32%) so as to control cost, afterwards, till the end of the 2013, it shows regularly increasing
trend by 0.86%, 1.73% and 1.79% respectively. Afterwards, in next two year, it rose by YOY
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growth of 0.85% and 1.54%. Recently, in 2016, it shows highest increase by 2.76% at a earning
of £29,679.
Table 2 Change in gross annual earnings of female
Particulars
Public
sector
Year on
Year
absolute
change
Year-on-
Year
growth
Private
sector
Year on
Year
absolute
change
Year-
on-
Year
growth
2009 25224 19551
2010 26113 889 3.52% 19532 -19 -0.10%
2011 26470 357 1.37% 19565 33 0.17%
2012 26636 166 0.63% 20313 748 3.82%
2013 27338 702 2.64% 20698 385 1.90%
2014 27705 367 1.34% 21017 319 1.54%
2015 27900 195 0.70% 21403 386 1.84%
2016 28053 153 0.55% 22251 848 3.96%
Figure 2 Gross annual earnings of female
According to this data differentiation of female analysis, it get identify that in public
sector, there are vast number of opportunities are identify for all female employees. Above table
presented that in 2010, female earnings in the public industries shows a huge growth of 3.52%
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whereas, in private sector, it came down by 0.10%. Afterwards, public sector shows an increase
but at declining rate by 1.37% and 0.63%, however, private sector shows an impressive growth
by 3.82% in 2012. Since 2014, although female workers in the public industries are paid with
higher wages, still, YOY growth is less by 1.34%, 0.70% and 0.55%. In contrast, private sector
workers were paid at high rate as their earning has been increased by 1.54%, 1.84% and 3.96%
respectively.
b) Gap between male and female annual earning
Table 3 Gap between male and female annual earnings in public sector
Public sector Male Female Gap
2009 30638 25224 5414
2010 31264 26113 5151
2011 31380 26470 4910
2012 31816 26636 5180
2013 32541 27338 5203
2014 32878 27705 5173
2015 33685 27900 5785
2016 34011 28053 5958
Figure 3 Gross annual earnings of male and female in public sector
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As per the graph, male working in public sector always earn higher comparatively to
female workers. In 2016, the gap is highest by £5958 whereas year 2011 shows lowest gap by
£4910.
Table 4 Gap between male and female annual earnings in public sector
Private sector Male Female Gap
2009 27362 19551 7811
2010 27000 19532 7468
2011 27233 19565 7668
2012 27705 20313 7392
2013 28201 20698 7503
2014 28442 21017 7425
2015 28881 21403 7478
2016 29679 22251 7428
Figure 4 Gross annual earnings of male and female people in private sector
In private sector, the gap between annual earning of the male and female employees is
comparatively higher to public sector workers. Highest gap is identified in 2009 by £7811 while
it is lowest in the year 2012 by £7392. Although male are getting good earnings in public sector,
still, high gap is recorded in private industries because, they paid female workers with a less
salary.
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TASK 2 ANALYSE AND EVALUATE RAW BUSINESS DATA USING
NUMBER OF STATISTICAL METHODS
Mainly there are two types of analysis which are used for every aspect of economic and
business aspect: Qualitative Analysis: There are certain aims and objectives which needs to be achieved
by using Interviews, Group discussion, experiments etc. In simple words it is a process in
which we move from the raw data that is being collected as part of research to provide
explanations, understanding and the process along with people in the research study. Aim
of analysing is to examine the meaningful content (Guan and Zhao, 2012).
Quantitative Analysis: It is an analysis that uses subjective judgement based on
unorganized information like management expertise, strength of research and
development and labour relations. It focuses on numbers that can be found on balance
sheet reports. Techniques will often be used in order to examine a organization's
operations and evaluate its potential as an investment opportunity.
A. (i) Use an Ogive to estimate the median hourly earnings
Median: Process of separating the higher half of data from the lower half or in simple
words the middle number (Keller, 2014).
Quartile: The quartiles of a ranked set of data values are three points that divide the data
set into for equal groups, each group comprising a quarter of data. The middle number between
the smallest number and median of data set is called the first quartile. Data's median is set as
second quartile and middle value between the median and the highest value of the data set is
known as third quartile.
Table 5 Calculation of cumulative frequency
Hourly earnings
(CI) F
Relative
frequency
Cumulative
frequency
Cumulative relative
frequency
0-10 8 8% 8 8%
10-20 46 46% 54 54%
20-30 26 26% 80 80%
30-40 14 14% 94 94%
40-50 6 6% 100 100%
10
0
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Figure 5 Ogive graph showing relative cumulative frequency
Median = L1 + (N/2) – c/F*i
L1: lower limit
N: ∑F
c - Cumulative frequency of previous class interval
i: Class interval
m = (N/2) = (100/2) = 50 falls in CF 54 of hourly earnings group (£10-£20)
L1: 10
N:100
c - 8
i: 10
M = 10 + [(50-8)/46 * 10
M = £19.13
q1 = (100/4) = 25 falls in CF 54 of hourly earnings group (£10-£20)
Q1 = 10 + (25-8)/46*10
Q1 = £13.69
q3 = (N/4)
= 3(100/4) = 75 falls in CF 80 of hourly earnings group (£20-£30)
Q3 = £20 + (75 – 54)/26*10
Q3 = 28.07
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As per the results, median hourly earning of the workers is determined to £19.13 which is
near to wages rate £19/hour. It shows that 50% of the total employee base generates hourly
wages rate below £19 and rest of the employees are being paid at wages rate beyond £19 per
hour. As per the value of quartile, 25% of the workers are paid at wages rate below or equal to
£13.69 which is near to £14/hour and 75% have been paid at £28/hour. However, only 6
employees are paid at under the wages group of £40-£50.
A. (ii) Calculate the mean and standard deviation for hourly earnings
Mean: In statistics, mean is known as another name as Average. It means calculation
done by adding all values together and then dividing by the number of values (Haimes, 2015).
Standard deviation: Amount of variation or the values of dispersion in a set of data
values is a measure used by the standard deviation (also known as Sigma). Standard deviation is
a measure how the spreading of numbers are taking place in a frequency table (Standard
Deviation and Variance, 2014).
Table 6 calculation of mean
Hourly earnings (CI) % of employees (F) Mid value (X) FX
0-10 8 5 40
10-20 46 15 690
20-30 26 25 650
30-40 14 35 490
40-50 6 45 270
100 2140
Mean = ∑Fx/∑F
= 2140/100
= £21.4
Table 7 Calculation of standard deviation
Hourly earnings
(CI)
% of employees
(F)
Mid value
(X) FX
Dx =
X-A Fdx Fdx2
0-10 8 5 40 -20 -160 3200
10-20 46 15 690 -10 -460 4600
20-30 26 25 650 0 0 0
30-40 14 35 490 10 140 1400
40-50 6 45 270 20 120 2400
100 2140 0 -360 11600
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A: Assumed mean: 25
Standard deviation: √∑Fdx2/N – (∑Fdx/N)2
= √11,600/100-(-360/100)^2
= √116- (-360/100)^2
= √116 – 129,600/10,000
= √116 – 12.96
= √103.04
= £10.15
B. Comparative analysis
Statistical measurement South East North East
Median £19.13 £14.55
Mean £21.4 £16.75
Standard deviation £10.15 £7.40
According to the results, it can be seen that in average of the hourly earnings is found to
£21.4 which states that hourly earnings of South East health professionals are not so similar with
the North East health Professionals. The average hourly earnings of the employees of North East
is £16.75 which is lower than the South East health professionals. Median is a mid-value of
representative data which is £19.13 of the South East health candidates; on the other hand, North
East health candidates have £14.55 which is comparatively lower. Along with this, deviation of
series and frequency is also low of North East health candidates to £7.40 which demonstrates
less spreaders or variability of the employee’s wages rate to average wages. However, in
contrast, South East employee’s earnings shows high standard deviation to £10.15 indicates high
variability.
A) Scatter diagram
Scatter diagram represent the size and weekly turnover of the project. There are mainly
two variables one is size and average weekly turnover on 10 different retail outlets.
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Figure 6 Scatter diagram
Considering the graph, it can be seen that floor area and turnover has a positive
relationship means outlet with high size generated higher average weekly turnover. For instance,
outlet A, D, E, F and H has a size of 22, 20, 25, 24 and 26 sq metre which generated turnover
worth £3.3, £3.8, £4.1, £3.5 and £5 thousand. Retail shop which size is lowest to 10 sq. metre,
generated lowest turnover of £1.8 thousand only. It is because, large sized retail shops can be
well equipped and maintained with multiple of items and able to serve large consumer base
resultant high turnover and return.
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(B). Line of best fit
Figure 7 Scatter diagram with line of best fit
(C) Calculation of turnover at a size of 30 sqm
Y = 0.157x + 0.202
= 0.157 (30 sqm) + 0.202
= 4.912
According to the results, if an outlet is opened with a size of 30 sqm, then its expected
weekly turnover is forecasted to £4.912 thousand.
(D). Calculation of correlation coefficient
Correlation is a statistical measurement that determines that in what direction and to what
extent, two variables are correlated or inter-related to each other. It means change in one variable
will definitely bring change into another one.
Table 8 calculation of correlation coefficient
Outlet Size (In sq. mt) Turnover (In GBP
thousand)
A 22 3.3
B 12 2
C 15 2.5
D 20 3.8
E 25 4.1
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F 24 3.5
G 10 1.8
H 26 5
I 12 2.5
J 18 2.5
Correlation
0.913767
Correlation coefficient between size and turnover is found to 0.91>0.75 which states that
both variables have a strong inter relationship. It means with the higher size, outlets generate
maximum turnover or vice-versa.
(E). Statistical validity of prediction and discussion of two factors that affect turnover
Statistical validity refers to important things which enable an organisation to draw a valid
conclusion for the results which they derived from available data source. Thus, a data should be
scientifically valid and appropriate in nature for making all the things appropriate and right in
nature as well. There are various number of validity get determine which have to take in
consideration and on the basis of that adequate decision have to get drawn as well.
Referring given scenario, although it is found that size is positively related to the total
turnover, still, there are other factors too which can affect sales. For instance, if retail
organization opens a new shop with very big size, still, the location is outside the central area of
the city, then, firm will not be able to generate enough turnovers. Thus, location must be selected
taking into consideration consumer convenience (Kulldorff, 2016). In despite of this, market
demand also influence sales to a major extent, if there is less market demand exists for the
company, then entity will be unable to maximize their sales even with large floor area. In
addition, competitors, products quality, innovation, price and other factors also affects turnover
which must be keep in mind before choosing a perfect location.
TASK 3 APPLICABILITY OF STATISTICAL METHODS IN BUSINESS
PLANNING
Statistical methods are helpful in drawing a valid conclusion and results for better and
effective outcome. Such data provide average and exact results from frequency. There are
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various number of statistical methods are identify in business planning process through which
adequate results can be derive in a proper manner.
A. Number of delivery in a current year
According to the given case study, olive oil suppliers deliver goods in every twelve days
to a local supermarket at a cost of £20. The annual demand of the olive oil bottles by
supermarket is 450,000 at a 25% storage cost equals to £2 (£20*25%).
Number of days in a year: 365 days
Supermarket closed = 5 days
Therefore, total days in a year = 365 - 5
= 360 days
Number of delivery days: 12 days
= Number of days/ Number of delivery days
= 360 days /12 days
= 30 deliveries
Company made 30 deliveries in a year at a delivery cost of £20 each so as to supply olive
oil bottles demanded by supermarket.
B. Number of bottles delivery delivered with each delivery
Demand of olive oil bottles: 450000
Number of deliveries: 30
= 450,000/30
= 15,000 bottles are delivered with each delivery
There are mainly 15000 bottles mainly deliver with every course of order. Thus,
management deliver such huge number of bottles in one delivery which aid them in making their
operations successful in nature.
C. Economic Order Quantity calculation
Economic Order Quantity (EOQ) identifies quantity or number of units that firm need to
supply in each order so as to retain their total cost at minimum level (Economic Order Quantity,
2017).
EOQ= √2AO/ C
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Here, A: Annual demand
O: Ordering cost per order
C: Carrying/holding cost per unit
=√(2*450,000 units *£20)/£2
= 3000 bottles
D. Comparison between current operating model and economic order quantity
Current ordering units = 15,000
Ordering cost = Number of order * per order cost
= (450,000/15,000) *£20
= 30 orders * £20/order
= £600
Carrying cost: Average inventory * holding cost per unit
= (0 + 15,000)/2 * £2/unit
= 7,500 units * £2/unit
= £15,000
Total cost = Ordering cost (OC) + carrying cost (CC)
= £600 + £15,000 = £15,600
Economic order quantity = 3,000 units
Ordering cost = Number of order * per order cost
= (450,000/3,000) *£20
= 150 orders * £20/order
= £3000
Carrying cost: Average inventory * holding cost per unit
(0 + 3,000)/2 * £2/unit
= 1500 units *£2/unit
= £3,000
Total cost = ordering cost (OC) + carrying cost (CC)
£3,000 + £3,000 = £6,000
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As per the results identified, it can be seen that under current operating model of the firm
in which, its order size is 15,000 units, it incur OC and CC worth £600 and £15,000 totalled to
£15,600. However, under EOQ, firm needs to place an order with a size of 3000 units only, at
this, although, it has to place high number of order to 150 in comparison to the earlier with an
order size of 30 only resultant in high ordering cost to £3,000. However, as supermarket need to
store less number of units result in less carrying cost to £3,000 only which is currently £15,000.
Thus, applying EOQ model, it can reduce its total cost by £9,600 from £15,600 to £6,000.
Considering the result, it is better to recommend that firm must opt for EOQ model instead of
currently applied model in which it is incurring high cost (Menglu, 2013).
TASK 4 COMMUNICATE APPROPRIATE FINDINGS
a) Scatter diagram
Figure 8 Scatter diagram between floor space and turnover
Above designed scatter diagram represent the size and turnover of a company and their
interrelationship between each other. The graph clearly exhibit that retail outlet with high floor
space generates comparatively higher level of turnover. Thus, it exhibits positive relationship, on
the basis of it, firm can be recommended that they must open outlets with sufficient floor area so
that number of products or services can be kept resultant in consumer traffic and maximum sales.
b) Line chart
15

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Figure 9 Male gross annual earnings in public sector
Line graph showing the male gross annual earnings from the year 2009 to 2016 which
indicates that consistent fluctuation is taking place. Although, the annual earnings of the male
workers shows upward trend, still, the rate of yearly growth depicts fluctuating trend. In year
2012, 2013 and 2015, the results demonstrates high growth by 2.04%, 2.28% and 2.45%,
whereas, in the remainder years, earnings demonstrate less level of increase and in last year
2016, it has been increased by 0.97% only.
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C. Ogive graph
Figure 10 Ogive graph
As per the results, it is visualized that wages group £20-£30 have a cumulative
freuqnency of 54%. Therefore, it is identified that median lies between £10-20 group and found
to £19.13/hour. However, ¼ and ¾ of the total employee base are paid at wages rate of £13.69
and £28 per hour. Finding average, it is determined that people are paid with an aveage wages
rate of £21.4/hour which is little bit higher than median earnings.
CONCLUSION
It get identify from the above mention report that statistics plays an effective role in
determine the adequate results which are beneficial for the long term context. It provides actual
and accurate results through which decision making process become easy and appropriate. On
the basis of various graphs and charts, management can evaluate the results in more appropriate
manner rather than other tools. Along with this, various charts states adequate outcome for the
betterment.
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REFERENCES
Books and Journals
Beardwell, J. and Thompson, A., 2014. Human resource management: a contemporary
approach. Pearson Education.
Embrechts, P. and Hofert, M., 2014. Statistics and quantitative risk management for banking and
insurance. Annual Review of Statistics and Its Application. 1. pp.493-514.
Guan, H. J. and Zhao, J. X., 2012. Study on the comprehensive evaluation system for cultural
industry development in Hebei province. Statistics and Management. 12(5). pp.8-10.
Haimes, Y. Y., 2015. Risk modeling, assessment, and management. John Wiley & Sons.
Keller, G., 2014. Statistics for management and economics. Nelson Education.
Kulldorff, M., 2016. Information Management Services, Inc. SaTScanTM v8. 0: Software for the
spatial and space-time scan statistics. 2009.
Menglu, C., 2013. The factors of influencing the job type of informal employee. Statistics and
Management. 3. pp.24-26.
Neave, H.R., 2013. Statistics tables: for mathematicians, engineers, economists and the
behavioural and management sciences. Routledge.
Pesaran, B. and Pesaran, M. H., 2010. Time series econometrics using Microfit 5.0: A user's
manual. Oxford University Press, Inc..
Sebastianelli, R. and Tamimi, N., 2011. Business statistics and management science online:
Teaching strategies and assessment of student learning. Journal of Education for
Business. 86(6). pp.317-325.
Sun, J. and Ma, H., 2016. Research on the optimization and improvement of public cultural
service system in Hebei province in the context of coordinated development of Beijing,
Tianjin, Hebei province. Statistics and management. 10. pp.77-80.
18

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Zhang, R. Q., Zhao, B. H. and Cao, P., 2011. To build an evaluation index system about leisure
agriculture and rural tour enterprise (park) in our country. Statistics and Management. 6.
pp.91-94.
Online
Economic Order Quantity. 2017. [Online]. Available through: http://accounting-
simplified.com/management/inventory/economic-order-quantity/. [Accessed on 12th
October 2017].
Standard Deviation and Variance. 2014. [Online]. Available through
:<http://www.mathsisfun.com/data/standard-deviation.html>. [Accessed on 11th
October 2017].
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