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A random sample of 400 teachers revealed an average salary of $45,372 and a standard deviation of $6398. Calculate a 90% confidence interval for the

A random sample of 400 teachers revealed an average salary of $45,372 and a standard deviation of $6398. Calculate a 90% confidence interval for the average salary for all teachers.

Group of answer choices

A. ($44,548, $46,196)

B. ($44,319, $46,425)

(C. $44,745, $45,999)

D. ($44,846, $45,898)

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