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Need help with the question in attached pic. Do not understand how to solve Here are summary statistics for randomly selected weights of newborn?girls: Construct

Need help with the question in attached pic. Do not understand how to solve

Here are summary statistics for randomly selected weights of newborn?girls: Construct a confidence interval estimate of the mean. Use a 95?% confidence level.

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Here are summary statistics for randomly selected weights of newborn girls: n = 175, x=29.2 hg, s =7.8 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence interval 27.6 hg

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