(b) Part of the results of the model fit were as follows: fat (1) Compute the test statistic for testing for the significance of the following predictor(round off answer to one decimal point): sugar fibre Variable B s.e(8) Intercept 53.437 -1.96 0.142 -3.48 0.621 2.95 0.255 Based on part (1): sugar fat fibre

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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A linear regression model is fitted to determine if a relationship exists between consumer rating of cereal(response)
and the number of grams of sugar contained in each serving, grams of fat per serving and grams of dietary fibre per
serving as predictors. The sample used was of size 77.
(a) The regression sum of squares of fitted model was 13002.226 and error sum of squares was 1994.574. Test for
significance of fit.
Transcribed Image Text:A linear regression model is fitted to determine if a relationship exists between consumer rating of cereal(response) and the number of grams of sugar contained in each serving, grams of fat per serving and grams of dietary fibre per serving as predictors. The sample used was of size 77. (a) The regression sum of squares of fitted model was 13002.226 and error sum of squares was 1994.574. Test for significance of fit.
(b) Part of the results of the model fit were as follows:
fat
(1) Compute the test statistic for testing for the significance of the following predictor(round off answer to one
decimal point):
sugar
fibre
Variable B s.e(B)
Intercept 53.437
Based on part (i);
sugar
-1.96 0.142
fat
-3.48
0.621
fibre 2.95 0.255
each of the three predictors is significantly related to response after adjusting for other two predictors
none of the three predictors is significantly related to response after adjusting for other two predictors
fibre is the most significant predictor after adjusting for other two predictors
none of the provided answers is correct
4
Transcribed Image Text:(b) Part of the results of the model fit were as follows: fat (1) Compute the test statistic for testing for the significance of the following predictor(round off answer to one decimal point): sugar fibre Variable B s.e(B) Intercept 53.437 Based on part (i); sugar -1.96 0.142 fat -3.48 0.621 fibre 2.95 0.255 each of the three predictors is significantly related to response after adjusting for other two predictors none of the three predictors is significantly related to response after adjusting for other two predictors fibre is the most significant predictor after adjusting for other two predictors none of the provided answers is correct 4
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