In a comparison engines experiment, gas mileage in miles per gallon(b)was measured. Engine type A was selected to conduct 95 experiments andengine type B was done 105 experiments. The gasoline used and otherconditions were held constant. The average gas mileage for engine A was 42miles per gallom and the average for engine B was 36 miles per gallon. Findthe 98% confidence interval on µA – µB , where µA and µB are populationmean gas mileage for engine types respectivesly. Assume that the enginetype A and B have the population standard deviation 3 and 7, respectively.

Given Data : For Sample 1 x̄1 = 42 n1 = 95 σ1= 3 For Sample 2…

Answered: In a comparison engines experiment, gas…

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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A physical therapist wanted to know whether the mean step pulse of men was less than the mean step pulse of women. She randomly selected 54 men and 75 women to participate in the study. Each subject was required to step up and down a 6-inch platform. The pulse of each subject was then recorded. The following results were obtained. N Mean StDev SE Mean Men Women 95% Cl for mu Men - mu Women - 9.81, - 0.79) T-Test mu Men = mu Women (vs H2 Oc. Họ: H1 = H2; Hai H1
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