Question: A study of peach trees found that the average number of peaches per tree was 1025. The standard deviation of the population is 35 peaches

A study of peach trees found that the average number of peaches per tree was 1025. The standard deviation of the population is 35 peaches per tree. A scientist wishes to find the 99% confidence interval for the mean number of peaches per tree. How many trees does she need to sample to obtain an average accurate to within 18 peaches per tree?

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