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Author Question: The management of Chattanooga Paper Corporation wants to determine whether there is a significant ... (Read 72 times)

curls713

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on: Mar 25, 2023

The management of Chattanooga Paper Corporation wants to determine whether there is a significant difference in the thickness of papers produced at their two existing plants. The following data has been accumulated for this test. The degrees of freedom (df) for this problem are given to be df = 80.

 

 

Plant 1

Plant 2

Sample Mean

30.8

30.0

Sample Standard Deviation

8.0

9.0

Sample Size

55

41


 

a.Compute a 95% confidence interval for the difference in the average thickness of papers produced at the two plants.
b.Is there conclusive evidence that the average thickness in one plant is significantly more than the other? If yes, which plant?Explain, using the results of part (a). Do not perform any test.

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by curls713 on Mar 25, 2023

delmiss

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Reply #1 on: Mar 25, 2023
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curls713

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Reply 2 on: Mar 25, 2023
Thanks for the timely response, appreciate it

lcapri7

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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