Eighty Randomly Selected Students Took the Calculus Final

question 6

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)(75.63,82.37)
• E)(73.49,80.06)

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