Suppose a sample of 60 business majors revealed that the average time spent
Studying per week is 22 hours with a standard deviation of 4 hours. For one student
Reporting that he studies 16 hours per week, the corresponding z score is
A) -1.5
B) 1.5
C) 2.2
D) -2.2
E) -3.0

Question

Quizplus · Accepted Answer

The z-score is calculated as (X - μ) / σ, where X is the value, μ is the mean, and σ is the standard deviation. Here, (16 - 22) / 4 = -1.5.

Suppose a Sample of 60 Business Majors Revealed That the Average