Answered: A study of seat belt users and nonusers…

Name: A study of seat belt users and nonusers yielded the randomly selected
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: A study of seat belt users and nonusers yielded the randomly selected sample data summarized in the accompanying table. Use a 0.05 significance level to test the claim that the amount of smoking is independent of seat belt use. A plausible theory is

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Topic Video

Question

A study of seat belt users and nonusers yielded the randomly selected sample data summarized in the accompanying table. Use a 0.05 significance level to test the claim that the amount of smoking is independent of seat belt use. A plausible theory is that people who smoke are less concerned about their health and safety and are therefore less inclined to wear seat belts. Is this theory supported by the sample data?

Number of Cigarettes Smoked Per Day

	0	1-14	15-34	35 and over
Wear Seat Belts	150	27	44	6
Don't Wear Seat Belts	151	21	45	8

(a) Determine the null and alternative hypotheses.

H0: Heavy smokers are not less likely than non-smokers to wear a seat belt.

H1: Heavy smokers are less likely than non-smokers to wear a seat belt.

H0: Heavy smokers are less likely than non-smokers to wear a seat belt.

H1: Heavy smokers are not less likely than non-smokers to wear a seat belt.

H0: The amount of smoking is independent of seat belt use.

H1: The amount of smoking is not independent of seat belt use.

H0: The amount of smoking is dependent upon seat belt use.

H1: The amount of smoking is not dependent upon seat belt use.

(b) Determine the test statistic.

χ2=?

(Round to three decimal places as needed.)

P-Value=?

(Round to three decimal places as needed.)

(d) Use a 0.05 significance level to test the claim that the amount of smoking is independent of seat belt use. A plausible theory is that people who smoke are less concerned about their health and safety and are therefore less inclined to wear seat belts. Is this theory supported by the sample data?

A. There is not sufficient evidence to reject the claim that heavy smokers are less likely than non-smokers to wear a seat belt. The theory is supported by the sample data.

B. There is sufficient evidence to reject the claim that heavy smokers are less likely than non-smokers to wear a seat belt. The theory is supported by the sample data.

C. There is not sufficient evidence to reject the claim that the amount of smoking is independent of seat belt use. The theory is not supported by the sample data.

D. There is sufficient evidence to reject the claim that the amount of smoking is independent of seat belt use. The theory is not supported by the sample data.

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 5 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Means$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions