Multiple Choice
A random sample of 100 students had a mean grade point average (GPA) of 3.2 with a standard deviation of 0.2. The standard error of the sample mean in this case is 0.02. Calculate an approximate 95% confidence interval for the mean GPA for all students.
A) (2.8, 3.6)
B) (3.16, 3.24)
C) (3.18, 3.22)
D) None of the above
Correct Answer:
Verified
Correct Answer:
Verified
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