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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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14. Safety officials hope a public information campaign will increase the use of seatbelts above the current 70% level. After several months they check the effectiveness of this campaign with a statewide survey of 600 randomly chosen drivers. 440 of those drivers report that they wear a seatbelt. a. Verify that a Normal model is a good approximation for the binomial model in this situation. b. Find the mean and standard deviation of the Normal model. c. Does the survey result convince you that the education/advertising campaign was effective? Explain.
Transcribed Image Text:14. Safety officials hope a public information campaign will increase the use of seatbelts above the current 70% level. After several months they check the effectiveness of this campaign with a statewide survey of 600 randomly chosen drivers. 440 of those drivers report that they wear a seatbelt. a. Verify that a Normal model is a good approximation for the binomial model in this situation. b. Find the mean and standard deviation of the Normal model. c. Does the survey result convince you that the education/advertising campaign was effective? Explain.
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