The average score on Midterm Exam over the past years was 80. With a new teaching curriculum introduced, it is believed that this score will change. A random sample of 20 students is selected and the mean score was found to be 75 with a standard deviation of 15. Assume the scores are normally distributed, what is the corresponding p- value of the test? 1

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QUESTION 27
The average score on Midterm Exam over the past years was 80. With new teaching curriculum introduced, it is believed that this score will change. A random sample of
20 students is selected and the mean score was found to be 75 with a standard deviation of 15. Assume the scores are normally distributed, what is the corresponding p-
value of the test?
1
Transcribed Image Text:QUESTION 27 The average score on Midterm Exam over the past years was 80. With new teaching curriculum introduced, it is believed that this score will change. A random sample of 20 students is selected and the mean score was found to be 75 with a standard deviation of 15. Assume the scores are normally distributed, what is the corresponding p- value of the test? 1
QUESTION 28
The level of
Ⓒ rejecting
significance
is the risk of
when is true.
rejecting when H, is correct.
accepting H when H is correct.
rejecting H₁ when # is correct.
Transcribed Image Text:QUESTION 28 The level of Ⓒ rejecting significance is the risk of when is true. rejecting when H, is correct. accepting H when H is correct. rejecting H₁ when # is correct.
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