Concept explainers
To compute: the standardized batting average for C, W, and B.
Answer to Problem 12E
All three hitters were at least 4 standard deviations above their peers, but W’s Z -score is the highest.
Explanation of Solution
Given:
Calculation:
Cobb's batting average was 0.420 in 1911. The standardized score for Cobb is obtained below.
William's batting average was 0.406 in 1941. The standardized score for William is obtained below.
Brett's batting average was 0.390 in 1980. The standardized score for Brett is obtained below.
All three hitters were at least 4 standard deviations above their peers, but Williams
Z -score is the highest.
Conclusion:
Therefore, all three hitters were at least 4 standard deviations above their peers, but W’s Z -score is the highest.
Chapter 2 Solutions
The Practice of Statistics for AP - 4th Edition
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