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company is checking the variance in units produced by two of its plants. Management believes the var - (NOTE: A large variance often signals an opportunity for "improvement"). A statistical test was done to ignificant difference between the variances of the two plants. Use alpha = .10 Plant 1 Plant 2 163,000 150,000 147,000 145,000 337,000 230,000 234,000 215,000 245,000 170,000 285,000 165,000 225,000 185,000 225,000 a. Hg: 4 - 4, =0

company is checking the variance in units produced by two of its plants. Management believes the var - (NOTE: A large variance often signals an opportunity for "improvement"). A statistical test was done to ignificant difference between the variances of the two plants. Use alpha = .10 Plant 1 Plant 2 163,000 150,000 147,000 145,000 337,000 230,000 234,000 215,000 245,000 170,000 285,000 165,000 225,000 185,000 225,000 a. Hg: 4 - 4, =0

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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A company is checking the variance in units produced by two of its plants. Management believes the variance for Plant 1 is greater than Plan 2. (NOTE: A large variance often signals an opportunity for "improvement"). A statistical test was done to determine whether there is a significant difference between the variances of the two plants. Use alpha = .10 Plant 1 Plant 2 163,000 150,000 147,000 145,000 337,000 230,000 234,000 215,000 245,000 170,000 285,000 165,000 225,000 185,000 225,000 a. H: 4 - 4, =0 b. H,:o = o} c. H:o so; d. Họ: 4 - 14 S0 1. Select the null hypotheses from above. 2. What test is needed? 3. Compute the test statistic (Round to the second (2nd) decimal place) 4. Provide the p-value (Round to the fourth (4th) decimal place) 5. What do you conclude? 6. What is your management decision?
Transcribed Image Text:A company is checking the variance in units produced by two of its plants. Management believes the variance for Plant 1 is greater than Plan 2. (NOTE: A large variance often signals an opportunity for "improvement"). A statistical test was done to determine whether there is a significant difference between the variances of the two plants. Use alpha = .10 Plant 1 Plant 2 163,000 150,000 147,000 145,000 337,000 230,000 234,000 215,000 245,000 170,000 285,000 165,000 225,000 185,000 225,000 a. H: 4 - 4, =0 b. H,:o = o} c. H:o so; d. Họ: 4 - 14 S0 1. Select the null hypotheses from above. 2. What test is needed? 3. Compute the test statistic (Round to the second (2nd) decimal place) 4. Provide the p-value (Round to the fourth (4th) decimal place) 5. What do you conclude? 6. What is your management decision?
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