Content
[Maximum mark: 8]
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:
Dr. Z decides to conduct a t-test at the 10% significance level.
- [1]
Write down the null and alternative hypotheses for this test.
To earn a crown, get your answer ready before you reveal the options!
- [5]
Determine with justification the conclusion of this test.
- [2]
State the two assumptions Dr. Z makes in using a t-test.
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