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weights of random sample of 110 people were collected and after determining they were normally distributed...

weights of random sample of 110 people were collected and after determining they were normally distributed , the mean was computed . given that the population standard deviation was 8.25 ib and the sample mean was 150.5 in, compute the 95% confidence interval

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Answer #1

Let X be the weight of a people.

Given, n=110

The 95% confidence interval for population mean is given by

## by using z table Z0.025=1.96

The 95% confidence interval for true population mean is

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