Random samples of sizes n1 = 25 and n2 = 20 were selected from populations A and B, respectively. From the samples, the standard deviations were computed to be s1 = 5.2 and s2 = 6.8a. Do the data provide substantial evidence to indicate the populations have different standard deviations? Use α = 0.05b. Estimate the relative sizes of the standard deviations by constructing a 95% confidence interval for the ratio of the standard deviations σ1/σ2 Random samples of sizes ni = 25 and n2 = 20 were selected from populations A and B,respectively. From the samples, the standard deviations were computed to be s, = 5.2 and s2 = 6.8.a. Do the data provide substantial evidence to indicate the populations have different standarddeviations? Use a = 0.05b. Estimate the relative sizes of the standard deviations by constructing a 95% confidenceinterval for the ratio of the standard deviations o1/02

The F-test for comparison of two population variances is used to determine whether the two…

Answered: Random samples of sizes n¡ = 25 and n2…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Problem 1P

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Random samples of sizes n1 = 25 and n2 = 20 were selected from populations A and B, respectively. From the samples, the standard deviations were computed to be s1 = 5.2 and s2 = 6.8

a. Do the data provide substantial evidence to indicate the populations have different standard deviations? Use α = 0.05
b. Estimate the relative sizes of the standard deviations by constructing a 95% confidence interval for the ratio of the standard deviations σ1/σ2

Random samples of sizes ni = 25 and n2 = 20 were selected from populations A and B,
respectively. From the samples, the standard deviations were computed to be s, = 5.2 and s2 = 6.8.
a. Do the data provide substantial evidence to indicate the populations have different standard
deviations? Use a = 0.05
b. Estimate the relative sizes of the standard deviations by constructing a 95% confidence
interval for the ratio of the standard deviations o1/02

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