Multiple Choice
A college teacher wishes to estimate the mean number of hours worked per week at non-college related jobs by full-time students at the college. He desires a margin of error of 1.3 hours. Past studies suggest that a population standard deviation of 13.6 hours is reasonable. Estimate the minimum sample size needed to estimate the population mean with the stated accuracy.
A) 219
B) 21
C) 438
D) 569
Correct Answer:
Verified
Correct Answer:
Verified
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