Mathematics, 24.04.2020 22:13 khenalilovespandas

A research firm conducted a survey to determine the mean amount Americans spend on coffee during a week. They found the distribution of weekly spending followed the normal distribution with a population standard deviation of $5. A sample of 64 Americans revealed that XÂ¯Â¯Â¯=$20 .

What is the 95% confidence interval estimate of ?? (Round your answers to 3 decimal places.)

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