Application of Statistical Techniques PDF
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Added on 2020-12-18
Application of Statistical Techniques PDF
Added on 2020-12-18
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STATISTICS FORMANAGERIAL DECISIONS
TABLE OF CONTENTSINTRODUCTION...........................................................................................................................1QUESTION 1...................................................................................................................................1(a) Listing quarterly opening price (2003-2015) of WPL and WOR with stem and leaf display.....................................................................................................................................................1(b) Constructing relative frequency histogram for WPL and frequency polygon for WOR .....2(c) Drawing bar chart of market capital in 2015 of WPL, WOR, ORG, STO, CTX and SOL...5(d) Proportion of stock price above $40 for each of WPL and WOR.........................................6QUESTION 2...................................................................................................................................6(a) Computation mean, median, first quartile and third quartile of price...................................6(b) Computation of standard deviation, range and coefficient of variation of every publisher..6(c) Drawing box whisker plot for price of each publisher..........................................................7QUESTION 3...................................................................................................................................9(a) Probability it gets water from on farm dams or tanks...........................................................9(b) Probability it gets water from groundwater and is located in Queensland............................9(c) Probability it gets water from water from rivers, creeks or lakes..........................................9(d) In New south Wales, which proportion of farm does not take water from either channels ofirrigation or pipelines or river, creeks or lakes.........................................................................10QUESTION 4.................................................................................................................................10(a.i) Probability that on any given week in a year would be no rainfall...................................10(a.ii) Probability that there would be 3 on more days of rainfall in a week..............................10(b.i) Probability in given week there would be among 6 mm and 12 mm of rainfall...............10(b.ii) Amount of rainfall if 20% of the weeks have amount of rainfall or higher.....................10QUESTION 5.................................................................................................................................11(a) Normal Probability Plots.....................................................................................................11(b) Constructing 95% confidence interval for every variable...................................................12(c) Testing hypothesis that more areas in forest burn when temperature is above 25 degree Cthan below 25 degree c with 1% level of significance..............................................................14CONCLUSION..............................................................................................................................15
INTRODUCTIONStatistics is considered as science of good decision making in uncertainty and used inmultiple disciplines like financial analysis, auditing, econometrics, operations and productionwhich comprises services improvement and marketing research. The present report will provideinterpretation and application of statistical techniques and scenarios. In the same series, it willimply statistical techniques as tool for decision making in business environment. QUESTION 1(a) Listing quarterly opening price (2003-2015) of WPL and WOR with stem and leaf displayThe stem and leaf plot is considered as special table where every data value is split into astem and a leaf. This organizes data points through place value of the leading digits as everystems is usually comprises digits in greases common place value of every item of data. Theleaves consist the other digits of every item of data.WORQuarter 1Quarter 2Quarter 3Quarter 420031.811.952.383.3620043.183.023.285.2220055.96.867.949.73200614.2619.3619.9118.02200721.3627.533.947.62200838.94938.49331.73714.065200914.19717.18824.28224.837201022.19325.07221.7721.591201126.01328.55325.88126.21201225.67426.57724.54523.209201323.73621.42220.72620.754201415.47615.81516.93412.75720159.0510.7728.6556.134WPLQuarter 1Quarter 2Quarter 3Quarter 4200311.3410.6712.213.21200414.315.4116.3719.22200520.4224.2928.1634.76200644.2645.6741.7636.65200736.4538.4742.2550.75200844.7353.9551.9240.42200934.1537.0444.1146.04201041.1944.1840.4842.33201140.5245.5437.3235.58201233.2933.9832.8433.481
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