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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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Bluereef real estate agent wants to form a relationship between the prices of houses, how many bedrooms, House size in sq ft and Lot Size in sq ft. The data pertaining to 100 houses were processed using MINITAB and the following is an extract of the output obtained: The regression equation is Price = pß + Bedroom + yHouse Size + Lot Size Predictor Coef SE Coef T P 37718 ** 2306 74.3 -4.36 Constant Bedrooms House Size Lot Size S= 25023 Source Regression Residual Error Total DF 3 96 99 R-Sq=56.0% 14177 6994 52.98 17.02 60109046053 2.66 0.33 * 0.742 0.164 -0.26 0.798 R-Sq (adj)=54.6% SS MS F *** 76501718347 25500572782 626135896 P **** a) Write out the regression equation. b) Fill in the missing values *, ** *** and ****. c) Use the p-value approach to determine if is significant at the 5% significance level d) Is y significantly different from -0.5? e) Perform the F test at the 1% level, making sure to state the null and alternative hypotheses. f) Give an interpretation to the term "R-sq" and comment on its value.
Transcribed Image Text:Bluereef real estate agent wants to form a relationship between the prices of houses, how many bedrooms, House size in sq ft and Lot Size in sq ft. The data pertaining to 100 houses were processed using MINITAB and the following is an extract of the output obtained: The regression equation is Price = pß + Bedroom + yHouse Size + Lot Size Predictor Coef SE Coef T P 37718 ** 2306 74.3 -4.36 Constant Bedrooms House Size Lot Size S= 25023 Source Regression Residual Error Total DF 3 96 99 R-Sq=56.0% 14177 6994 52.98 17.02 60109046053 2.66 0.33 * 0.742 0.164 -0.26 0.798 R-Sq (adj)=54.6% SS MS F *** 76501718347 25500572782 626135896 P **** a) Write out the regression equation. b) Fill in the missing values *, ** *** and ****. c) Use the p-value approach to determine if is significant at the 5% significance level d) Is y significantly different from -0.5? e) Perform the F test at the 1% level, making sure to state the null and alternative hypotheses. f) Give an interpretation to the term "R-sq" and comment on its value.
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