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. Find the interval that contains 95.44 percent of the sample means for male students.
A) [3.45, 3.55]
B) [2.50, 4.50]
C) [3.35, 3.65]
D) [3.40, 3.60]

Question

Quizplus · Accepted Answer

[3.5 ± 2(.05)] = (3.5 ± .1) = [3.4, 3.6]

A Research Study Investigated Differences Between Male and Female Students