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The following data were obtained in an experiment designed to check whether there is a systematic difference in the weights obtained with two different scales: 1 2 5 6 7 Specimen Scale 1 (X) | 11.23 14.36 8.33 10.50 23.42 9.15 13.47 6.47 12.40 19.38 Scale 2 (Y) | 11.27 14.41 8.35 10.52 23.41 9.17 13.52 6.46 12.45 19.35 3 8 10 (a) Use the paired t test at the 0.05 level of significance to try to establish that the mean difference of the weights obtained with the two scales is nonzero. (b) Find a 95% confidence interval for the mean difference if the weights obtained with the two scales.

The following data were obtained in an experiment designed to check whether there is a systematic difference in the weights obtained with two different scales: 1 2 5 6 7 Specimen Scale 1 (X) | 11.23 14.36 8.33 10.50 23.42 9.15 13.47 6.47 12.40 19.38 Scale 2 (Y) | 11.27 14.41 8.35 10.52 23.41 9.17 13.52 6.46 12.45 19.35 3 8 10 (a) Use the paired t test at the 0.05 level of significance to try to establish that the mean difference of the weights obtained with the two scales is nonzero. (b) Find a 95% confidence interval for the mean difference if the weights obtained with the two scales.

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 following data were obtained in an experiment designed to check whether there is a systematic difference in the weights obtained with two different scales: 1 Specimen Scale 1 (X) 11.23 14.36 8.33 10.50 23.42 9.15 13.47 6.47 12.40 19.38 Scale 2 (Y) | 11.27 14.41 8.35 10.52 23.41 9.17 13.52 6.46 12.45 19.35 2 3 4 5 7 8 9 10 (a) Use the paired t test at the 0.05 level of significance to try to establish that the mean difference of the weights obtained with the two scales is nonzero. (b) Find a 95% confidence interval for the mean difference if the weights obtained with the two scales.
Transcribed Image Text:The following data were obtained in an experiment designed to check whether there is a systematic difference in the weights obtained with two different scales: 1 Specimen Scale 1 (X) 11.23 14.36 8.33 10.50 23.42 9.15 13.47 6.47 12.40 19.38 Scale 2 (Y) | 11.27 14.41 8.35 10.52 23.41 9.17 13.52 6.46 12.45 19.35 2 3 4 5 7 8 9 10 (a) Use the paired t test at the 0.05 level of significance to try to establish that the mean difference of the weights obtained with the two scales is nonzero. (b) Find a 95% confidence interval for the mean difference if the weights obtained with the two scales.
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