Use the following information for following questions .
The distribution of the number of hours people spend at work per day is unimodal
and symmetric with a mean of 8 hours and a standard deviation of 0.5 hours.
-If Anthony's z-score for his work hours was −1.3, explain what this value means in terms of the number of hours he works.
A)Anthony works 1.3 hours less than the average person.
B)Anthony works 1.3 hours more than the average person.
C)The number of hours Anthony works is 1.3 standard deviations below the mean.
D)The number of hours Anthony works is 1.3 standard deviations above the mean.

Question

Quizplus · Accepted Answer

A z-score of -1.3 indicates that Anthony's work hours are 1.3 standard deviations below the mean, not directly 1.3 hours less than the mean. This z-score reflects how far and in what direction Anthony's work hours deviate from the average, measured in terms of standard deviations.

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