Take a Test Pedro G on Google Chrome Secure Pedro Giron & 4/30/17 12:26 PM Math

Question

Take a Test Pedro G on Google Chrome Secure Pedro Giron & 4/30/17 12:26 PM Math 123 DL Spring 2017 Quiz: Chapter 8 Quiz Submit Quiz This Question: 1 pt This Quiz: 10 pts possible 2 of 10 (1 complete A safety engineer records the braking distances of two types of tires. Each randomly S sal has 35 tires. The results of the tests are shown in the table. At a 0.10, can the elected Type A engineer support the claim that the mean braking distance is different for the two types of tires? Assume the samples are randomly selected and that the samples are independent. X1 41 feet Complete parts (a) through (e). 01 4.8 feet Type B x2 43 feet 2 45 feet hat is the claim? O A. The mean braking distance is the same for the two types of tires. O B. The mean braking distance is greater for Type A tires than Type B tires. O C. T mean braking distance is different for the two types of tires. he O D. The mean braking distance is less for Type A tires than Type B tires. at are Ho and H Ho: H Ha: H Ha: 1 H2 O D. Ho: u (b) Find the critical value(s) and identify the rejection region(s) Click to select your answer(s). 26 AM Type here to search 4/30/2017

Explanation / Answer

a) Claim: Option C is correct.

Ho and Ha: Option F is correct.

b) Critical values: -1.645, 1.645

Rejection region: z < -1.645, z > 1.645

c) From statistical software output,

z = -1.798

d) Option C is correct.

e) At the 10% significance level, there is sufficient evidence to support the claim that the mean braking distance for Type A tires is difference from the one for Type b Tires.

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