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English, 31.03.2020 18:51 mahalabear8120

A student wanted to construct a 95% confidence interval for the mean age of students in her statistics class. She randomly selected nine students. Their mean age was 19.1 years with a sample standard deviation of 1.5 years. What is the 99% confidence interval for the population mean?

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A student wanted to construct a 95% confidence interval for the mean age of students in her statisti...
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