A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2740 occupants not wearing seat belts, 38 were killed. Among 7645 occupants wearing seat belts, 12 were killed. Use a 0.05 significance level to test the claim that seat belts are effective in reducing fatalities. Complete parts (a) through (c) below. OA. Ho: P₁ P₂ H₁: P₁ = P2 OD. Ho: P₁ P2 H₁: P₁ P2. Identify the test statistic. 2= 7.98 (Round to two decimal places as needed.) Identify the P-value. P-value = 0.000 (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? B. Ho: P1 P2 H₁: P₁ P2 The appropriate confidence interval is < (P₁-P₂) < (Round to three decimal places as needed.) OE. Ho: P1 P2 H₁: P₁ #P2 The P-value is less than the significance level of a = 0.05, so wearing seat belts. b. Test the claim by constructing an appropriate confidence interval. reject the null hypothesis. There OC. Ho: P₁ P₂ H₁: P₁ P₂ OF. Ho: P₁ SP₂ H₁: P₁ P2 sufficient evidence to support the claim that the fatality rate is higher for those not
A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2740 occupants not wearing seat belts, 38 were killed. Among 7645 occupants wearing seat belts, 12 were killed. Use a 0.05 significance level to test the claim that seat belts are effective in reducing fatalities. Complete parts (a) through (c) below. OA. Ho: P₁ P₂ H₁: P₁ = P2 OD. Ho: P₁ P2 H₁: P₁ P2. Identify the test statistic. 2= 7.98 (Round to two decimal places as needed.) Identify the P-value. P-value = 0.000 (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? B. Ho: P1 P2 H₁: P₁ P2 The appropriate confidence interval is < (P₁-P₂) < (Round to three decimal places as needed.) OE. Ho: P1 P2 H₁: P₁ #P2 The P-value is less than the significance level of a = 0.05, so wearing seat belts. b. Test the claim by constructing an appropriate confidence interval. reject the null hypothesis. There OC. Ho: P₁ P₂ H₁: P₁ P₂ OF. Ho: P₁ SP₂ H₁: P₁ P2 sufficient evidence to support the claim that the fatality rate is higher for those not
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman