Answer to Question #268327 in Statistics and Probability for aliza

Question

(i)- The table below shows the distribution of salaries of employees in Dun ford and Sons. SALARY RANGE & NO. OF EMPLOYEES

Salary range 5,000-9,999 10,000-14,999 15,000-19,999 20,000-24,999 25,000-29,999 30,000-34,999 35,000+

No. of Employees

56

134

292

149

127

38

25

a) Make the necessary calculations and draw a cumulative frequency.

b) Calculate the number of managers, given that senior managers’ salaries are £30,000 and above, and middle managers’ salaries are greater than £20,000.

c) Calculate the ratio of senior managers to middle managers.

d) Calculate the percentage of the workforce which are not senior or middle managers (i.e. other employees).