A research study investigated differences between male and female students. Based on the study results, we can assume the population mean and standard deviation for the GPA of male students are µ = 3.5 and σ = .5. Suppose a random sample of 100 male students is selected and the GPA for each student is calculated. What is the probability that the random sample of 100 male students has a mean GPA greater than 3.42?
A) .0548
B) .4364
C) .9452
D) .5636

Question

Quizplus · Accepted Answer

P(> 3.42) = P= P= P(Z > −1.6)
= 1.00 − .0548 = .9452

A Research Study Investigated Differences Between Male and Female Students