Assume that a sample is used to estimate a population mean μμ. Find the 95% confidence interval for a sample of size 68 with a mean of 19.3 and a standard deviation of 10.7. Enter your answer as an open-interval (i.e., parentheses) accurate to 3 decimal places. 95% C.I. =  The answer should be obtain

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ch. 8 confidence interval mean 

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Assume that a sample is used to estimate a population mean μμ. Find the 95% confidence interval for a sample of size 68 with a mean of 19.3 and a standard deviation of 10.7. Enter your answer as an open-interval (i.e., parentheses) accurate to 3 decimal places.

95% C.I. = 

The answer should be obtained without any preliminary rounding.

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