STAT 200 Quiz 3 Solution Correct Answers

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STAT 200 QUIZ 3 Solution Correct Answers MULTIPLE CHOICE. Choose the one alternative that best complet e s the statement or answers the questio n . Write the null and alternative hypotheses you would use to test the following situatio n . 1) 5 % of trucks of a certain model have needed new engines after being driven between 0 and 100 1) miles. The manufacturer hopes that the redesign of one of the e ngine's components has solved this problem. A) H 0 : p > 0. 0 5 H A : p = 0. 0 5 B) H 0 : p < 0. 0 5 H A : p > 0. 0 5 C) H 0 : p = 0. 0 5 H A : p < 0. 0 5 D) H 0 : p < 0. 0 5 H A : p = 0. 0 5 E) H 0 : p = 0. 0 5 H A : p > 0. 0 5 2) The federal guideline for smog is 12% pollutants per 10,000 v olume of air. A metropolitan city is 2) trying to bring its smog level into federal guidelines. The ci t y comes up with a new policy where city employees are to use of city transportation to and from w o rk. A local environmental group does not think the city is doing enough and no real change will occur. An independent agency, hired by the city, runs a test on the air. What are the null a n d alternative hypotheses? A) H 0 : p = 0.12 H A : p < 0.12 B) H 0 : p = 0.12 H A : p > 0.12 C) H 0 : p = 0.12 H A : p ≠ 0.12 D) H 0 : p ≠ 0.12 H A : p = 0.12 E) H 0 : p < 0.12 H A : p > 0.12
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