Question: 10.Jefri conducted the test in determining whether his classmates' grades in Mathematics would average higher than 90. Which of the following is the correct statement

10.Jefri conducted the test in determining whether his classmates' grades in Mathematics would average higher than 90. Which of the following is the correct statement for alternative hypothesis?

A. = 90 B. >= 90 C. > 90 D. 90

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