ue, what can be of the houses irds of the

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For items 9 to 13, refer to the given situation: Hauz of Gaz claims that more than two-thirds of
the houses in a certain subdivision use their brand. Is there a reason to doubt this claim if 25
out of a random sample of 40 houses in the subdivision use the company's brand? Test the
claim at 0.01 level of significance.
9. What are the null and alternate hypotheses?
A. Haip= 0.67; Ho:p # 0.67
B. Haip # 0.67; Ho:p = 0.67
C. Haip< 0.67; Ho:p # 0.67
D. Haip < 0.67; Ho:p = 0.67
%3D
10. What type of test is appropriate for this situation?
C. x-test
A. z-test
B.t-test
D. F-test
11. Which of the following are the critical values at a =
A. -2.33
=0.05?
%3D
B. 2.33
C. +2.33
D. +2.262
12. What is the value of the test statistic?
A. 0.6053
B. 0.6503
C. -0.6053
D. -0.6503
13. Based on the result on the comparison between critical and computed value, what can be
concluded?
A. There is enough evidence to reject the claim that more than two-thirds of the houses
in the subdivision use Hauz of Gaz brand.
B. There is not enough evidence to reject the claim that more than two-thirds of the
houses in the subdivision use Hauz of Gaz brand.
C. Accept the null hypothesis.
D. The given information is not enough to make any conclusion.
Transcribed Image Text:For items 9 to 13, refer to the given situation: Hauz of Gaz claims that more than two-thirds of the houses in a certain subdivision use their brand. Is there a reason to doubt this claim if 25 out of a random sample of 40 houses in the subdivision use the company's brand? Test the claim at 0.01 level of significance. 9. What are the null and alternate hypotheses? A. Haip= 0.67; Ho:p # 0.67 B. Haip # 0.67; Ho:p = 0.67 C. Haip< 0.67; Ho:p # 0.67 D. Haip < 0.67; Ho:p = 0.67 %3D 10. What type of test is appropriate for this situation? C. x-test A. z-test B.t-test D. F-test 11. Which of the following are the critical values at a = A. -2.33 =0.05? %3D B. 2.33 C. +2.33 D. +2.262 12. What is the value of the test statistic? A. 0.6053 B. 0.6503 C. -0.6053 D. -0.6503 13. Based on the result on the comparison between critical and computed value, what can be concluded? A. There is enough evidence to reject the claim that more than two-thirds of the houses in the subdivision use Hauz of Gaz brand. B. There is not enough evidence to reject the claim that more than two-thirds of the houses in the subdivision use Hauz of Gaz brand. C. Accept the null hypothesis. D. The given information is not enough to make any conclusion.
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