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The 95% confidence interval for the population mean was calculated based on a random sample of size n = 70 as 75 to 96. What

The 95% confidence interval for the population mean was calculated based on a random sample of size n = 70 as 75 to 96. What was the sample mean? Hint: Take a look at the formula for the confidence interval.

342

10.5

85.5

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