City A claims that the variance of its drunk-driving accidents is less than the variance of the

Question:

City A claims that the variance of its drunk-driving accidents is less than the variance of the drunk-driving accidents in City B. A sample of the drunk-driving cases of 15 of City A's accidents has a variance of 1.9. A sample of the drunk-driving cases of 20 of City B's accidents has a variance of 3.6. At \(\alpha=0.01\), can you support City A's claim?

(a) identify the claim and state \(H_{0}\) and \(H_{a}\),

(b) find the critical value and identify the rejection region,

(c) find the test statistic \(F,\) 

(d) decide whether to reject or fail to reject the null hypothesis, 

(e) interpret the decision in the context of the original claim. Assume the samples are random and independent, and the populations are normally distributed.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question

Elementary Statistics Picturing The World

ISBN: 9781292260464

7th Global Edition

Authors: Betsy Farber, Ron Larson

Question Posted: