mikaelalcool1
26.07.2019 •
Business
Abusiness that repairs major appliances charges a flat fee and hourly amount plus the cost of any needed parts. they know that the time required to repair an appliance has a standard deviation of 0.25 hours. the mean depends on the type of appliance. to estimate the true mean time required to repair side-by-side refrigerators, they will take a random sample of 60 refrigerator repairs. if they want a 99% confidence interval, what will the margin of error in their estimate be?
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Ответ:
Where; Z=2.58 at 99% confidence interval, s= sd = 0.25 hours, n=sample population = 60 refrigerators
Therefore;
Margin of error = +/-2.58*
Ответ:
"I keep telling people that I love dancing, writing, and painting.”
Explanation:
there you go! it wasnt to messed up it was just a run on:)