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Dr. Z thinks his class performed better on a recent exam than Mr. X's class. The scores of students in each class are displayed in the following table:
It is given that the scores in one class are independent of scores in the other.
Dr. Z decides to conduct a t-test at the 10% significance level.
Write down the null and alternative hypotheses for this test.
Determine with justification the conclusion of this test.
State the two assumptions Dr. Z makes in using a t-test.
Dr. Z thinks his class performed better on a recent exam than Mr. X's class. The scores of students in each class are displayed in the following table:
It is given that the scores in one class are independent of scores in the other.
Dr. Z decides to conduct a t-test at the 10% significance level.
Write down the null and alternative hypotheses for this test.
Determine with justification the conclusion of this test.
State the two assumptions Dr. Z makes in using a t-test.