Suppose that you sample two normal populations inde- pendently. The variances of these two populations are oj and ož. You take random samples of sizes n, and n and observe sample variances of sĩ and sz. a. If n¡ = n2 = 21, how large must the fraction s1/s2 be before you can reject the null hypothesis that of is no greater than ơž at the 5% significance level? b. Answer part a when n¡ = n, = 41. c. If s¡ is 25% greater than s2, approximately how large must n¡ and n, be if you are able to reject the null hypothesis in part a at the 5% significance level? Assume that n¡ and nɔ are equal.

Suppose that you sample two normal populations inde- pendently. The variances of these two populations are oj and ož. You take random samples of sizes n, and n and observe sample variances of sĩ and sz. a. If n¡ = n2 = 21, how large must the fraction s1/s2 be before you can reject the null hypothesis that of is no greater than ơž at the 5% significance level? b. Answer part a when n¡ = n, = 41. c. If s¡ is 25% greater than s2, approximately how large must n¡ and n, be if you are able to reject the null hypothesis in part a at the 5% significance level? Assume that n¡ and nɔ are equal.

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Description: Suppose that you sample two normal populations inde-pendently. The variances of these two populations areof and ož. You take random samples of sizes n¡ and n2and observe sample variances of s¡ and sz.a. If n¡ = n2 = 21, how large must the fraction s

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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