Multiple Choice
A large Midwestern university is interested in estimating the mean time that students spend at the student recreation center per week. A previous study indicated that the standard deviation in time is about 40 minutes per week. If the officials wish to estimate the mean time within ± 10 minutes with a 90 percent confidence, what should the sample size be?
A) 44
B) 62
C) 302
D) Can't be determined without knowing how many students there are at the university.
Correct Answer:
Verified
Correct Answer:
Verified
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