Chapter 2.2, Problem 2.52E

(a)

To determine

To Explain: the affect on mean and median salary.

Explanation of Solution

Given:

Raise 5% instead of a $1000

Mean and median is affected by any raise in percentage of the salaries so the mean salary and median salary both will be increased by the 5% because it is the increment in all salaries and mean and median are the centre of the salaries I

(b)

To determine

To Explain: that affect on IQR and on standard deviation yes or no.

Answer to Problem 2.52E

Yes, affected

Explanation of Solution

Given:

Raise 5% instead of a $1000

Yes it will be affecting both of the parameter. IQR and standard deviation affected by any raise in percentage of the salaries so IQR and standard deviation both will be increased by the 5% raise in the salaries.