Mathematics, 26.12.2019 18:31, kktiger14

Suppose scores on exams in statistics are normally distributed with an unknown population mean and a population standard deviation of three points. a random sample of 36 scores is taken and gives a sample mean (sample mean score) of 68. find a confidence interval estimate for the population mean exam score (the mean score on all exams). find a 90% confidence interval for the true (population) mean of statistics exam scores.

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Suppose scores on exams in statistics are normally distributed with an unknown population mean and a...