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Exhibit-C. An insurance company selected samples of clients under 18 years of age and over 18 and recorded the number of accidents they had in the previous year. We are interested in determining if the accident proportions differ between the two age groups. The results are shown below. Under age of 18 Over age of 18 m₂ = 600 n₁ = 500 Number of accidents = 180 Number of accidents = 150 07. Refer to Exhibit- C. The test statistic is approximately (A) Z=3.96 (B) Z=2.96 (C) Z=1.96 (D) Z=0.96 08. Refer to Exhibit- C. A 95% confidence interval for the proportion between two age groups is approximately (A) (0.036, 0.144) (B) (0.064, 0.156) (C) (0.055, 0.165) (D) None of all is true. 09. Refer to Exhibit- C. Given a 5% level of significance, what decision should be reached about the null hypothesis (B) Because Z<1.96, we reject the null hypothesis. (D) None of these alternatives is correct. (A) Since p-value > 0.05, we do reject the null hypothesis. (C) Since p-value < 0.05, we do not reject the null hypothesis.

Exhibit-C. An insurance company selected samples of clients under 18 years of age and over 18 and recorded the number of accidents they had in the previous year. We are interested in determining if the accident proportions differ between the two age groups. The results are shown below. Under age of 18 Over age of 18 m₂ = 600 n₁ = 500 Number of accidents = 180 Number of accidents = 150 07. Refer to Exhibit- C. The test statistic is approximately (A) Z=3.96 (B) Z=2.96 (C) Z=1.96 (D) Z=0.96 08. Refer to Exhibit- C. A 95% confidence interval for the proportion between two age groups is approximately (A) (0.036, 0.144) (B) (0.064, 0.156) (C) (0.055, 0.165) (D) None of all is true. 09. Refer to Exhibit- C. Given a 5% level of significance, what decision should be reached about the null hypothesis (B) Because Z<1.96, we reject the null hypothesis. (D) None of these alternatives is correct. (A) Since p-value > 0.05, we do reject the null hypothesis. (C) Since p-value < 0.05, we do not reject the null hypothesis.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Exhibit-C. An insurance company selected samples of clients under 18 years of age and over 18 and recorded the number of accidents they had in the previous year. We are interested in determining if the accident proportions differ between the two age groups. The results are shown below. Under age of 18 Over age of 18 m₂ = 600 n₁ = 500 Number of accidents = 180 Number of accidents = 150 07. Refer to Exhibit- C. The test statistic is approximately (A) Z=3.96 (B) Z-2.96 (C) Z=1.96 (D) Z=0.96 08. Refer to Exhibit- C. A 95% confidence interval for the proportion between two age groups is approximately (A) (0.036, 0.144) (B) (0.064, 0.156) (C) (0.055, 0.165) (D) None of all is true. 09. Refer to Exhibit- C. Given a 5% level of significance, what decision should be reached about the null hypothesis (A) Since p-value > 0.05, we do reject the null hypothesis. (B) Because Z<1.96, we reject the null hypothesis. (C) Since p-value < 0.05, we do not reject the null hypothesis. (D) None of these alternatives is correct.
Transcribed Image Text:Exhibit-C. An insurance company selected samples of clients under 18 years of age and over 18 and recorded the number of accidents they had in the previous year. We are interested in determining if the accident proportions differ between the two age groups. The results are shown below. Under age of 18 Over age of 18 m₂ = 600 n₁ = 500 Number of accidents = 180 Number of accidents = 150 07. Refer to Exhibit- C. The test statistic is approximately (A) Z=3.96 (B) Z-2.96 (C) Z=1.96 (D) Z=0.96 08. Refer to Exhibit- C. A 95% confidence interval for the proportion between two age groups is approximately (A) (0.036, 0.144) (B) (0.064, 0.156) (C) (0.055, 0.165) (D) None of all is true. 09. Refer to Exhibit- C. Given a 5% level of significance, what decision should be reached about the null hypothesis (A) Since p-value > 0.05, we do reject the null hypothesis. (B) Because Z<1.96, we reject the null hypothesis. (C) Since p-value < 0.05, we do not reject the null hypothesis. (D) None of these alternatives is correct.
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