Question: Instructions: Show your solutions using PhStat only. You can take a screenshot of your PhStat solutions here or submit an Excel file with all your

Instructions: Show your solutions using PhStat only. You can take a screenshot of your PhStat solutions here or submit an Excel file with all your answers to each question. You must clearly label your final answers.

A recent study of 28 city residents showed that the mean of the time they had lived at their present address was 9.3 years and the standard deviation was 2 years. Assuming a normal population, find the 90% confidence interval of the true mean. Interpret the interval estimate.

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