Eighty Randomly Selected Students Took the Calculus Final

question 34

Multiple Choice

Eighty randomly selected students took the calculus final.If the sample mean was 76 and the standard deviation was 8.1,construct a 99% confidence interval for the mean score of all students.

• A)(71.92,80.08)
• B)(71.94,80.06)
• C)(73.49,78.51)
• D)(73.67,78.33)
• E)(73.49,80.06)

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