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A Professor Gives an Exam in Which the Mean Score $\neq$

Question 53

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A professor gives an exam in which the mean score is 78 points.She gives another exam to test whether or not scores change.In this example,the null hypothesis is

A) $A professor gives an exam in which the mean score is 78 points.She gives another exam to test whether or not scores change.In this example,the null hypothesis is A) \neq 78 B) M \neq 78 C) = 78 D) M = 78$ $\neq$ 78
B) M $\neq$ 78
C) $A professor gives an exam in which the mean score is 78 points.She gives another exam to test whether or not scores change.In this example,the null hypothesis is A) \neq 78 B) M \neq 78 C) = 78 D) M = 78$ = 78
D) M = 78

A Professor Gives an Exam in Which the Mean Score ≠\neq=

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A Professor Gives an Exam in Which the Mean Score $\neq$

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