Question
1. In a right-tailed hypothesis test, the test statistic turns out to be z=2.12z=2.12. What is the PP-value for this hypothesis test? 0.983 0.034 -0.90
1. In a right-tailed hypothesis test, the test statistic turns out to be z=2.12z=2.12. What is the PP-value for this hypothesis test?
- 0.983
- 0.034
- -0.90
- 0.017
2. The physical education department at Centerville High School claims that more than 75% of CHS students qualify for the Presidential Physical Fitness Award. In a sample of 150 CHS students, 120 were found to qualify for the award. Which of the following is a correct way to begin a test of this claim?
- Let pp denote the proportion of all CHS students who qualify for the award.
- Let H0H0 be the claim that more than 75% of CHS students qualify for the award.
- Let H1>0.75H1>0.75.
- Let pp^ denote that 80% of the students at CHS qualify for the award.
3. A hypothesis test was conducted to test the claim that less than 20% of all Statsburgh residents are overweight. In a random sample of 100 Statsburgh residents, 16 were overweight. What is the value of the test statistic?
- -1.10
- 0.159
- 1.09
- -1.00
4. In a hypothesis test of H0:p=0.25H0:p=0.25 vs. H1:p0.25H1:p0.25, the test statistic turns out to be z=1.95z=-1.95. What is the PP-value for this test?
- 0.9744
- 0.0512
- -0.0256
- 0.0256
5. What is the critical value zczc for a right-tailed hypothesis test at the =0.15=0.15 significance level?
- -2.17
- 1.04
- -2.97
- 0.9332
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