Question: the 25 is supposed to be a 30. solve using TI 84 The average height of a random sample of 30 American adult men is

the 25 is supposed to be a 30. solve using TI 84

The average height of a random sample of 30 American adult men is found to be 69.72 inches, and the standard deviation of the 25 heights is found to 4.15 inches. Assume that the heights are normally distributed. 30 Construct and interpret the 90% confidence interval for the population mean height

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