Maurice Tutor

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Category > Management Posted 30 Oct 2017 My Price 3.00

confidence interval of the population

According to a recent survey, high school girls average 100 text messages daily (The Boston Globe, April 21, 2010). Assume that the survey was based on a random sample of 36 high school girls. The sample standard deviation is computed as 10 text messages daily.

 

a. Calculate the margin of error with 99% confidence.

b. What is the 99% confidence interval of the population mean texts that all high school girls send daily?

 

Answers

Maurice Tutor
(5)
Status NEW Posted 30 Oct 2017 09:10 PM My Price 3.00

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