8. Laptops and Learning, again Refer to the data given in Exercise 16 (Section 12.3). The MINITAB...

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8. Laptops and Learning, again Refer to the data given in Exercise 16 (Section 12.3). The MINITAB printout is reproduced here

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a. What assumptions must be made about the distribution of the random error ?

b. What is the best estimate of 2 s , the variance of the random error ?

c. Use the diagnostic plots for these data to comment on the validity of the regression assumptions.

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Introduction To Probability And Statistics

ISBN: 9780357114469

15th Edition

Authors: William Mendenhall Iii , Robert Beaver , Barbara Beaver

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Question Posted: Sep 20, 2024 05:02 AM

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8. Laptops and Learning, again Refer to the data given in Exercise 16 (Section 12.3). The MINITAB...

Question:

Regression Analysis: y versus x Analysis of Variance Source DF Adj SS Adj MS F-Value P-Value Regression 1 3254.03 3254.03 56.05 0.000 Error 18 1044.92 58.05 Total 19 4298.95 Model Summary S R-sq R-sq(adj) 7.61912 75.69% 74.34%

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Introduction To Probability And Statistics

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