The commercial division of a real estate firm is conducting a regression analysis of the relationship between x, annual gross rents (in thousands of dollars), and y, selling price (in thousands ofdollars) for apartment buildings. Data were collected on several properties recently sold and the following computer output was obtained.ANOVAdfSSMSFSignificance FRegression141587.6Residual7Total851984.9CoefficientsStandard Errort StatP-valueIntercept20.0003.22136.21Annual Gross7.2901.36255.29Rentsa. How many apartment buildings were in the sample?9b. Write the estimated regression equation (to 2 decimals if necessary).20 +7.21 xc. Use the t statistic to test the significance of the relationship at a 0.05 level of significance.What is the p-value? Use Table 2 of Appendix B.p-value is greater than 0.10What is your conclusion?Conclude that the selling price is related to annual gross rents.d. Use the F statistic to test the significance of the relationship at a 0.05 level of significance.Compute the F test statistic (to 2 decimals).28.00What is the p-value? Use Table 4 of Appendix B.p-value isless than 0.01What is your conclusion?Conclude that the selling price is related to annual gross rents.e. Predict the selling price of an apartment building with gross annual rents of $50,000 (to 1 decimal).$380.5 thousands.

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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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The new manager of an Information Technology company collected data for a sample of 20 computer programmers in the organization to perform a multiple regression analysis on the structure of their salaries. The aim of this manager in this exercise is to determine if the Salary (y) of a hired computer programmer was related to the years of Experience (??) in the organization and also the Score (??) of the programmers during their first interview aptitude test scores. The years of experience, score on the aptitude test and the corresponding annual salary (in thousands of Ghana cedis) for a sample of the 20 programmers is shown in the Regression statistics table below; Experience (??) (in years) Score (??) (out of 100%) Salary (y) (GH¢ 000) 4 78 24 7 100 43 1 86 23.7 5 82 34.3 8 86 35.8 10 84 38 0 75 22.2 1 80 23.1 6 83 30 6 91 33 9 88 38 2 73 26.6 10 75 36.2 5 81 31.6…
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