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The critical value for a 90 confidence interval based on the

The critical value for a 90% confidence interval based on the t(21) distribution.

A. 1.721
B. 1.725
C. 1.645
D. 1.717

Solution

Answer is option A. 1.721

The critical value for a 90% confidence interval based on the t(21) distribution. A. 1.721 B. 1.725 C. 1.645 D. 1.717 SolutionAnswer is option A. 1.721

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