The GPA of accounting students in a university is known to be normally distributed. A random sample of 20 accounting students results in a mean of 2.92 and a standard deviation of 0.16. Construct the 95% confidence interval for the mean GPA of all accounting students at this university.
A) 2.92 ± 1.729(0.16/ )
B) 2.92 ± 1.96(0.16/ )
C) 2.92 ± 2.086(0.16/ )
D) 2.92 ± 2.093(0.16/ )

Question

The GPA of accounting students in a university is known to be normally distributed. A random sample of 20 accounting students results in a mean of 2.92 and a standard deviation of 0.16. Construct the 95% confidence interval for the mean GPA of all accounting students at this university.
A) 2.92 ± 1.729(0.16/ ) 
B) 2.92 ± 1.96(0.16/ ) 
C) 2.92 ± 2.086(0.16/ ) 
D) 2.92 ± 2.093(0.16/ )

Quizplus · Accepted Answer

The Answer of The GPA of accounting students in a university is known to be normally distributed. A random sample of 20 accounting students results in a mean of 2.92 and a standard deviation of 0.16. Construct the 95% confidence interval for the mean GPA of all accounting students at this university.
A) 2.92 ± 1.729(0.16/ ) 
B) 2.92 ± 1.96(0.16/ ) 
C) 2.92 ± 2.086(0.16/ ) 
D) 2.92 ± 2.093(0.16/ )

The GPA of Accounting Students in a University Is Known