Multiple Choice
A sample of 50 students is taken from Utah Valley University (UVU) .These students spent an average of $175 on books this semester,with a standard deviation of $25.A 95% confidence interval for the average amount of money spent on books for all students at UVU is equal to ________.(Hint: Use Excel function to obtain the critical value. )
A) 175 ± 3.47
B) 175 ± 7.18
C) 175 ± 7.51
D) 175 ± 3.86
Correct Answer:

Verified
Correct Answer:
Verified
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