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A researcher surveys middle-school students on their study habits. She finds that in a random sample...

Question

A researcher surveys middle-school students on their study habits. She finds that in a random sample...

A researcher surveys middle-school students on their study habits. She finds that in a random sample of 28 middle-school students, the mean amount of time that they spend working on the computer each night is 2.4 hours with a standard deviation of 0.92 hours. She uses the sample statistics to compute a 95% confidence interval for the population mean - the the mean amount of time that all middle-school students spend working on the computer each night.

What is the 95% confidence interval?

Answers

Anson Given mean X = 2.4 hours Standard deviation as 0.92 hours n = 28 To find the Con fidence interval at 95% We know that C

Hence the solution...


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