Options:a) 20% b) 100% c) 400% d) 50% For the relation 3Y= 12-6 X between X and Y; if standarddeviation of X, o,= 10 and mean of Y values, = 40 then,%3Dcoefficient of variation (CV) of Y will be

Answered: Image /qna-images/answer/ed3b354a-7ac8-49e2-a8fa-4e6a5952a999.jpg

Answered: For the relation 3Y= 12-6X between X…

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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I don’t understand the assignment.
A simple random sample of front seat occupants involved in car crashes is obtained. Among 2780 occupants not wearing seat belts, 37 were killed. Among 7731 occupants wearing seat belts, 15 were killed. Use a 0.05 significance level to test the claim that seat belts are effective in reducing fatalities. (a) Test the claim using a hypothesis test. Ho: P1 = P2 H1: Choose one of the following letter_ A: P1 = P2: B: P1 > P2: C: P1 < P2 D: P1 + P2 (b) Identify the test statistic. z test = (Round to two decimal places.) %3D (c) Identify the P-value. Conclusion p-value is (Round to three decimal places.) since p-value is [ less than, or greater than) s.f.0.05 so ( Reject / Fail to reject. ) (d) Test the claim by constructing an appropriate confidence interval. < Pi – P2 << (Round to three decimal places.)

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For the relation 3Y= 12-6X between X and Y; if standard deviation of X, 0 = 10 and mean of Y values, y= 40 then, %3D coefficient of variation (CV) of Y will be