Assignment Details

You have been asked to evaluate data regarding all 50 staff working in Co. XYZ.

(See Appendix A below)

Q1

1. Calculate the proportion of employees that are:
   1. male (3 marks)
   2. female (3 marks)
2. Calculate the average level of job satisfaction among staff. (3marks)
   iii) a) Present the salary data as a frequency distribution of grouped data (5 marks)
   b) Represent the frequency distribution as a histogram (5 marks)
   iv) Calculate the mean () and standard deviation () from the frequency distribution. (18 marks)
   v) Assume the salaries follow a normal distribution and use your results from Part iv) above to calculate the following:
   1. the proportion of salaries above €42,000 (6 marks)
   2. the proportion of salaries between €30,000 and €35,000 (7 marks)
      Q2
      i) Using the research randomizer on Moodle, or otherwise, select a simple random sample of size 8 from the range 1 to 50. (5 marks)
      ii) How many different samples of size 8 is it possible to get from a population of size 50? (5 marks)
3. Using the 8 random numbers select a simple random sample of salaries. (8 marks)
4. From the sample data calculate the following:
   1. the mean salary (x) (10 marks)
   2. the standard deviation ( s ) (12 marks)

v) Compare your sample average (x) with the population average () and comment. (10 marks)

Price: $11.94

Solution: The downloadable solution consists of 7 pages, 494 words and 1 charts.
Deliverable: Word Document