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 restaurant owner wishes to find the 99% confidence interval of the true mean cost of a dry martini. How large should the sample be if she wishes to be accurate within $0.10? A previous study showed that the standard deviation of the price was $0.12.

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