PROBLEM 8E

Let p equal the proportion of drivers who use a seat belt in a state that does not have a mandatory seat belt law. It was claimed that p = 0.14. An advertising campaign was conducted to increase this proportion. Two months after the campaign, y = 104 out of a random sample of n = 590 drivers were wearing their seat belts. Was the campaign successful?

(a) Define the null and alternative hypotheses.

(b) Define a critical region with an α = 0.01 significance level.

(c) What is your conclusion?

Leslie Ogu HLWL 1109 10/11/2016 - Chapter 17: Power and Coercion Thoughts From Class on Reading ● There’s been an increasing number of sexual assault on campus ● It’s a tough topic for people to talk about ● A few cultures use rape as a form of punishment ● The statistics were challenging, and almost scary to see Relation to Current Events: The...