Chapter 2.2, Problem 2.51E

(a)

To determine

To Explain: the affect on the mean and median if the salary increase by $1000.

Explanation of Solution

Given:

$1000 rise in salary

Mean and median is affected by adding any constant value so here rise in the salary of $1000 will be affected on mean and median so mean and median will be increased by the $1000. Mean and median is the centre of the salaries.

(b)

To determine

To Explain: the affect on standard deviation, extremes and quartiles.

Explanation of Solution

Given:

$1000 rise in salary

Extremes and quartiles both affected by the adding any constant value so extremes and quartiles both increase by the $1000 because all salaries increase by $1000 but the standard deviation not affected by the adding any constant so increasing in the salaries will be not affected on standard deviation.