Mathematics, 30.04.2021 06:30, enicole10

A survey of 85 randomly selected homeowners finds that they spend a mean of $67 per month on internet. Assume that the population standard deviation is $14 per month. a) Construct and interpret a 99% confidence interval estimate for the mean amount of money spent per month on internet by all homeowners.
b) Does the confidence interval support that internet costs more than $60 per month? Why or why not?

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A survey of 85 randomly selected homeowners finds that they spend a mean of $67 per month on interne...