iidLet x1, X2, . , XnN(4, o2). Find the necessary sample size n and the value y so that Xn < y is the rejection region fortesting Ho : u 2 20 versus H1 : µ < 20, with the probability of type I error being 4.8% and the power at u = 19.77 being 0.95. (Youmay use o = 0.3)The following`answers" have been proposed.(a) n = 18.66 z 19, and y = 19.8842.(b) n = 31.62 - 32, and y = 19.8842.(c) n = 18.66 z 19, andy = 17.1831.(d) n = 31.62 = 32, and y = 17.1831.(e) None of the above.The correct answer is(а)(b)(c)(d)(e)N/A(Select One)

We are given X1, X2, ...., Xn~Nμ,σ2 Critical region, W=x: Xn¯<y The hypothesis under the test is…

Answered: ud N(H, o2). Find the necessary sample…

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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Preliminary data analysis indicate that it is reasonable to use a t-test to carry out the specified hypothesis test. Perform the t-test using the critical-value approach. %3D X = 44.2 and s = 7.3 Use a significance level of a = 0.05 to test the claim that u 35.8. The sample data consists of 10 scores for which H:µ±35.8 0 Н и-35.8 Test statistics: t=3.64 Critical Value: t=+/-2.262 H:µ=35.8 Reject There is sufficient evidence to support the claim that the mean is different from 35.8. П. : и 3 44.2 0. H:µ±44.2 a. Test statistics: t=3.64 Critical Value: t= +/- 2.262 H:µ=44.2 Н, There is sufficient evidence to support the claim that the mean is different from 44.2. Reject
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ud N(H, o2). Find the necessary sample size n and the value y so that Xn < y is the rejection region for testing Ho : µ 2 20 versus H1 : µ < 20, with the probability of type I error being 4.8% and the power at µ = 19.77 being 0.95. (You Let x1, X2, …· , Xn may use o = 0.3)