A researcher wishes to estimate the average number of minutes per day a person spends on the Internet. How large a sampl

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A researcher wishes to estimate the average number of minutes
per day a person spends on the Internet. How large a sample must
she select if she wishes to be 99% confident that the population
mean is within 11 minutes of the sample mean? Assume the population
standard deviation is 37 minutes.
Select one:
a.
n=70
b.
n=78
c.
n=76
d.
n=74