Researchers conducted a study that examined marital status and stress levels. A hypothesis test was conducted to test the claim that people with different marital statuses have a different mean stress level. The TI-84 output for the test is shown below.
State the null and alternative hypothesis.
◦ H
0: There is no difference in the mean stress levels of married and unmarried people.
H
a: There is a difference in the mean stress levels of married and unmarried people.
◦ H
0: Marital status and stress levels are not associated.
H
a: Marital status and stress levels are associated.
◦ H
0: Marital status and stress levels are not associated.
H
a: Mean stress levels of married people are greater than the mean stress levels of unmarried people.
◦ H
0: Marital status and stress levels are associated.
H
a: Marital status and stress levels are not associated.
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