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Mathematics, 26.08.2019 23:30 pandadude123

Suppose germination periods, in days, for grass seed are normally distributed and have a known population standard deviation of 6 days and an unknown population mean. a random sample of 21 types of grass seed is taken and gives a sample mean of 34 days. find the margin of error for the confidence interval for the population mean with a 99% confidence level.

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