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The MINITAB analysis uses the pooled estimate of a?. Is the assumption of equal variances reasonable? Why or why not? (Round your answer to three decimal places.) The ratio of the larger of the two sample variances to the smaller is which is less than than 3, so the assumption of equal variances is reasonable.

The MINITAB analysis uses the pooled estimate of a?. Is the assumption of equal variances reasonable? Why or why not? (Round your answer to three decimal places.) The ratio of the larger of the two sample variances to the smaller is which is less than than 3, so the assumption of equal variances is reasonable.

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
Section10.6: Summarizing Categorical Data
Problem 4DGP
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solve for part c

Data on the estimated average price for a variety of different brands of tuna, based on prices paid nationally in supermarkets, are shown in the following table. Use the MINITAB printout to answer the questions in parts (a)-(c). (Use the exact values found in the MINITAB output.) Light Tuna in Water Light Tuna in Oil 1.01 0.51 2.54 0.60 1.94 1.43 1.90 0.64 1.25 1.10 1.32 0.64 0.87 0.65 1.77 0.67 0.67 0.69 1.21 0.62 0.67 0.62 0.69 0.62 0.68 Two-Sample T-Test and CI: Light Water, Light Oil Descriptive Statistics Sample N Mean StDev SE Mean Light Water 14 0.908 0.403 0.11 Light Oil 11 1.145 0.668 0.20 Estimation for Difference 95% CI for Difference Pooled StDev difference -0.238 0.534 (-0.683, 0.208) Test H: H1 - H2 = 0 H: H - H2 # o Null hypothesis Alternative hypothesiS T-Value DF P-Value -1.10 23 0.281
Transcribed Image Text:Data on the estimated average price for a variety of different brands of tuna, based on prices paid nationally in supermarkets, are shown in the following table. Use the MINITAB printout to answer the questions in parts (a)-(c). (Use the exact values found in the MINITAB output.) Light Tuna in Water Light Tuna in Oil 1.01 0.51 2.54 0.60 1.94 1.43 1.90 0.64 1.25 1.10 1.32 0.64 0.87 0.65 1.77 0.67 0.67 0.69 1.21 0.62 0.67 0.62 0.69 0.62 0.68 Two-Sample T-Test and CI: Light Water, Light Oil Descriptive Statistics Sample N Mean StDev SE Mean Light Water 14 0.908 0.403 0.11 Light Oil 11 1.145 0.668 0.20 Estimation for Difference 95% CI for Difference Pooled StDev difference -0.238 0.534 (-0.683, 0.208) Test H: H1 - H2 = 0 H: H - H2 # o Null hypothesis Alternative hypothesiS T-Value DF P-Value -1.10 23 0.281
O H, is not rejected. There is insufficient evidence to conclude that there is a difference in the average prices of light tuna in water versus oil. (b) What is the p-value for the test? p-value = 0.281 (c) The MINITAB analysis uses the pooled estimate of o?. Is the assumption of equal variances reasonable? Why or why not? (Round your answer to three decimal places.) The ratio of the larger of the two sample variances to the smaller is which is less than V than 3, so the assumption of equal variances is reasonable.
Transcribed Image Text:O H, is not rejected. There is insufficient evidence to conclude that there is a difference in the average prices of light tuna in water versus oil. (b) What is the p-value for the test? p-value = 0.281 (c) The MINITAB analysis uses the pooled estimate of o?. Is the assumption of equal variances reasonable? Why or why not? (Round your answer to three decimal places.) The ratio of the larger of the two sample variances to the smaller is which is less than V than 3, so the assumption of equal variances is reasonable.
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