Multiple Choice
The Arkansas State Police wish to estimate the average mph being traveled on the Interstate Highways,which cross the state.If the estimate is to be within 8 mpg of the true mean with 98% confidence and the estimated standard deviation is 22 mph,how large a sample size must be taken?
A) 42
B) 15
C) 329
D) 14
E) 41
Correct Answer:
Verified
Correct Answer:
Verified
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