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Statistics Assignment HSE

   

Added on  2019-12-17

14 Pages2843 Words236 Views
STATISTICSASSIGMNMENT
Statistics Assignment HSE_1
Table of ContentsINTRODUCTION.......................................................................................................................................1Population and sample size......................................................................................................................1Research questions..................................................................................................................................1Hypothesis of the study...........................................................................................................................2Descriptive statistics................................................................................................................................2Justifying the chosen statistical tests........................................................................................................6Interpreting the p-value, confidence interval and correlation coefficient.................................................8Critically analyzing the research questions............................................................................................10CONCLUSION AND RECOMMENDATIONS.......................................................................................11REFERENCES..........................................................................................................................................12
Statistics Assignment HSE_2
INTRODUCTIONThe Health and Safety Executive (HSE) commissions possess interest in identifying thehealth hazard of people working in different sectors in order to identify the harmful impacts ofthe workplace activities. In relation to this, this assignment aims at analysing the health hazard ofthe people working in the brick and tile industries. The hypothesis of this study considers thatthere exist significant potential of health hazard of these workers. In addition, it considers thatthe risk positively correlates with their work span. Precisely, it assumes that exposure to theRCS-containing dust results in silicosis leading to incapacity and premature deaths. With regardto this, it uses data collected from the workers of these industries. Further, it depends on certainstatistical tests and conducts a comparative analysis on these to industries for justifying theseassumptions.In order to analyze and examine the data set, a number of statistical tests have beenused such as descriptive statistics, correlation and others. Population and sample sizeThe population consists of the people working indifferent areas of the tile and brickindustry. The study relies on a purposely selected random sampling for deciding on the samplefor the study. The sampling technique appears effective as it allows the researchers to considercertain conditions in case of selecting the sample. In this context, the researchers ensures that theworkers have not worked in both tile and brick industry, they work in production area (as itensures exposure to the dust particles consisting RCS), and they are not smokers. This is usefulin identifying the real impact of the RCS-containing dust particles on the health of these workers.Further, using random sampling ensures that the selection process is free from any bias. Basedon these criteria, the researchers used random sampling method for selecting a sample of 65workers. Among these 65 people, 38 workers are from brick industry and 27 from the tileindustry. Research questionsThe research questions are crucial in identifying the primary cause for conducting a research.With regard to this, this assignment sets the research questions as:RQ: 1. Is there any significant difference in the potential health hazard of the people working inthe brick and tile industry?1
Statistics Assignment HSE_3
RQ: 2 Is there any association between the potential health damage and the length of the service?Hypothesis of the studyHypothesis for testing research question 1 H0(Null Hypothesis):There is no significant difference between potential health hazards of theworkers employed in Bricks and tile industry. H1 (Alternative hypothesis):There is significant difference between potential health hazards ofthe workers employed in Bricks and tile industry. Hypothesis for testing research question 2H0 (Null Hypothesis): There is no significant relationship between length of service and healtheffects? H1 (Alternative hypothesis): There is significant relationship between length of service and healtheffects? Descriptive statisticsThe descriptive statistics appears useful in gathering the fundamental information on acollected dataset. The chosen research topic requires information on the workers of the brick andtile industry. It provides useful information about the data set and helps to summarize the wholedata set by providing the statistical results of central tendency i.e. mean, mode and median anddispersion measurement i.e. standard deviation, variance and others. Survey respondentsThe above results provide the information on the data collected and indicates that out of65 workers, 38 workers were employed in brick industry and 27 were engaged in tile sector.Further, it is essential to identify the proportion of brick and tile industry workers to the selectedsample. From the sample selection it is evident that the proportion of the brick industry workersis slightly higher to 58.46% than that of the workers in the tile industry as it is derived to41.54%. 2
Statistics Assignment HSE_4

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