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We wish to calculate the 90% confidence interval for the population mean of a certain variable, based on a sample of 10 observations with

We wish to calculate the 90% confidence interval for the population mean of a certain variable, based on a sample of 10 observations with a mean of 75 and a standard deviation of 52 Using the formula: X-ta/2.n-1X+ta/2.n-1jm X VS va vn A. 0.05 B. 0.01 C. 10 D. 5 E. 0.90 F. 75

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