(a)
To find: The result of mean and median salary if the salaries of teacher increase.
(a)
Answer to Problem 20E
The mean and median salaries will each increase by
Explanation of Solution
Given:
The
If every teacher is given a flat
(b)
To find: the result of extremes, quartilesand standard deviation if the salaries of teacher increase.
(b)
Answer to Problem 20E
The extremes and
Explanation of Solution
The extremes and quartiles will also each increase by $1000. The standard deviation will not change. Nothing has happened to affect the variability of the distribution. The center has shifted location, but the spread has not changed.
Chapter 2 Solutions
The Practice of Statistics for AP - 4th Edition
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