Question
Cindy earned a score of 940 on a national achievement test. The mean test score was 850 with a standard deviation of 100. Which of
Cindy earned a score of 940 on a national achievement test. The mean test score was 850 with a standard deviation of 100. Which of the following statements is false?
a) 81.59% of the students scored lower than cindy
b) 18.41% of the students tested scored higher than Cindy
c) the Z score for Cindy is 90%
d) Cindy did better than 90% of the class
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Introduction To Probability And Statistics
Authors: William Mendenhall, Robert Beaver, Barbara Beaver
14th Edition
