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A random sample of 51 undergraduate statistics students resulted in a sample mean age of 21.3 years, with a sample standard deviation of 2.5 years.

A random sample of 51 undergraduate statistics students resulted in a sample mean age of 21.3 years, with a sample standard deviation of 2.5 years. Find theupper boundof the99%confidence interval for the true mean age, to one decimal place.

please add step by step instructions

Thanks,

Eunice

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