You randomly select a sample of n = 21. What is the appropriate value for t to compute a 95% confidence interval?
A) 1.721
B) 2.080
C) 2.086
D) 1.725

Name: You randomly select a sample of n = 21. What is the appropriate value for t to compute a 95% confidence interval? A) 1.721 B) 2.080 C) 2.086 D) 1.725
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Question

Quizplus · Accepted Answer

For a sample size of n = 21, the degrees of freedom is 20. The t-value for a 95% confidence interval with 20 degrees of freedom is approximately 2.086.

You Randomly Select a Sample of N = 21