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Suppose you fit the first-o a. Do the values of SSE a O A. No. Since R =0.9 provide a good fit. O B. There is not enoug C. Yes. Since R = 0.5 b. Is the model of any use P1. P2. Bs is nonzero. ... The test statistic is (Round to two decimal plac

Suppose you fit the first-o a. Do the values of SSE a O A. No. Since R =0.9 provide a good fit. O B. There is not enoug C. Yes. Since R = 0.5 b. Is the model of any use P1. P2. Bs is nonzero. ... The test statistic is (Round to two decimal plac

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Suppose you fit the first-order model y = Bo + B, x, + B,x, + Bax, + B,x, + BeXg + ɛ to n= 26 data points and obtain SSE = 0.33 and R = 0.93. Complete parts a and b. a. Do the values of SSE and R2 suggest that the model provides a good fit to the data? Explain. O A. No. Since R = 0.93 is close to 1, this indicates the model does not provide a good fit. Also, SSE = 0.33 is fairly small, which indicates the model does not provide a good fit. B. There is not enough information to decide. Yes. Since R = 0.93 is close to 1, this indicates the model provides a good fit. Also, SSE =0.33 is fairly small, which indicates the model provides a good fit. b. Is the model of any use in predicting y? Test the null hypothesis Ho: B, = B, = ... = B5 = 0 against the alternative hypothesis: At least one of the parameters B1. B2, ... , B5 is nonzero. Use a = 0.05. The test statistic is (Round to two decimal places as needed.)
Transcribed Image Text:Suppose you fit the first-order model y = Bo + B, x, + B,x, + Bax, + B,x, + BeXg + ɛ to n= 26 data points and obtain SSE = 0.33 and R = 0.93. Complete parts a and b. a. Do the values of SSE and R2 suggest that the model provides a good fit to the data? Explain. O A. No. Since R = 0.93 is close to 1, this indicates the model does not provide a good fit. Also, SSE = 0.33 is fairly small, which indicates the model does not provide a good fit. B. There is not enough information to decide. Yes. Since R = 0.93 is close to 1, this indicates the model provides a good fit. Also, SSE =0.33 is fairly small, which indicates the model provides a good fit. b. Is the model of any use in predicting y? Test the null hypothesis Ho: B, = B, = ... = B5 = 0 against the alternative hypothesis: At least one of the parameters B1. B2, ... , B5 is nonzero. Use a = 0.05. The test statistic is (Round to two decimal places as needed.)
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