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Construct a 95% confidence interval for the ratio of the variances. [ Write only the final result [ in the box below

Construct a 95% confidence interval for the ratio of the variances. [ Write only the final result [ in the box below

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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The aim of a study is to test the ratio of variances in the weight of two groups of rats being under a certain drugs A ( group 1) and B ( group 2) . A random sample of 19 rats was selected from group land 16 rats from group 2, Then their weight were recorded. The results are shown in the following table sd Median Mean n 1.05 3.0 3.5 20 group 1 1.15 2.0 2.20 17 group 2 F19,16,0.025 =0.386 F15,12,0.05 = 0.404 F16,10,0.025=0.335 F19,16,0.05 = 0.451 F15,12,0.1 0.496 F16.10,0.05=0.401 F16,19,0.025 0.371 F12,15,0.05 =0.382 F10.16,0.025 =0.286 F16,19,0.05 0.437 F12150.1 0.475 F10,16,0.05 0.354 Construct a 95% confidence interval for the ratio of the variances. [ Write only the final result [ in the box below
Transcribed Image Text:The aim of a study is to test the ratio of variances in the weight of two groups of rats being under a certain drugs A ( group 1) and B ( group 2) . A random sample of 19 rats was selected from group land 16 rats from group 2, Then their weight were recorded. The results are shown in the following table sd Median Mean n 1.05 3.0 3.5 20 group 1 1.15 2.0 2.20 17 group 2 F19,16,0.025 =0.386 F15,12,0.05 = 0.404 F16,10,0.025=0.335 F19,16,0.05 = 0.451 F15,12,0.1 0.496 F16.10,0.05=0.401 F16,19,0.025 0.371 F12,15,0.05 =0.382 F10.16,0.025 =0.286 F16,19,0.05 0.437 F12150.1 0.475 F10,16,0.05 0.354 Construct a 95% confidence interval for the ratio of the variances. [ Write only the final result [ in the box below
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