Question:

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)

iii) Using the 8 random numbers select a simple random sample of salaries. (8 marks)

iv) From the sample data calculate the following:

a) the mean salary (`x) (10 marks)

b)the standard deviation (s) (12 marks)

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