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A sample of 26 elements from a normally distributed population is selected. The sample mean is 10 with a standard deviation of 4. The 95%

A sample of 26 elements from a normally distributed population is selected. The sample mean is 10 with a standard deviation of 4. The 95% confidence interval for is_____.

a. 6.000 to 14.000
b. 9.846 to 10.154
c. 8.384 to 11.616
d. 8.462 to 11.538

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