(See Solution) Vacation Days A U.S. Travel Data Center survey reported that Americans stayed an average of $7.5$ nights when they went on vacation. The
Question: Vacation Days A U.S. Travel Data Center survey reported that Americans stayed an average of $7.5$ nights when they went on vacation. The sample size was 1500 . Find u point estimate of the population mean, Find the w $95 \%$ confidence interval of the true mean, Assume the population standard deviation was $0.8$.
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