Question
A simple random sample offront-seat occupants involved in car crashes is obtained. Among 2924 occupants not wearing seatbelts, 36 were killed. Among 7606 occupants wearing
A simple random sample offront-seat occupants involved in car crashes is obtained. Among 2924 occupants not wearing seatbelts, 36 were killed. Among 7606 occupants wearing seatbelts, 14 were killed. Use a 0.05 significance level to test the claim that seat belts are effective in reducing fatalities. What are the null and alternative hypotheses for the hypothesistest? Identify the test statistic. Identify theP-value. What is the conclusion based on the hypothesistest? What is the conclusion based on the confidenceinterval? What do the results suggest about the effectiveness of seatbelts?
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started