Q#1: (a) A Statistician wants to predict the incomes of restaurants, using two independent variables; the number of restaurant employees and restaurant floor area. He collected the following table Income Floor area Number of (000) Y (000sq.ft) X1 employees X2 30 10 15 22 5 8 16 10 12 7 3 7 14 2 10 Calculate the estimated multiple linear regression equation for the above data and also interpret the results

Q#1: (a) A Statistician wants to predict the incomes of restaurants, using two independent variables; the number of restaurant employees and restaurant floor area. He collected the following table Income Floor area Number of (000) Y (000sq.ft) X1 employees X2 30 10 15 22 5 8 16 10 12 7 3 7 14 2 10 Calculate the estimated multiple linear regression equation for the above data and also interpret the results

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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Used cars 2010 Vehix.com offered several used ToyotaCorollas for sale. The following table displays the ages ofthe cars and the advertised prices. a) Make a scatterplot for these data.b) Do you think a linear model is appropriate? Explain.c) Find the equation of the regression line. d) Check the residuals to see if the conditions for infer-ence are met. Age (yr) Price ($) Age (yr) Price ($)1 15988 6 99951 13988 6 119882 14488 7 89903 10995 8 94883 13998 8 89954 13622 9 59904 12810 10 41005 9988 12 2995
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The following data shows memory scores collected from adults of different ages. Age (X) Memory Score (Y) 25 10 32 10 39 9 48 9 56 7 Use the data to find the regression equation for predicting memory scores from age. The regression equation is: Ŷ = 4.33X + 0.11 Ŷ = -0.11X + 4.33 Ŷ = -0.11X + 13.26 Ŷ = -0.09X + 5.4 Ŷ = -0.09X + 12.6 Use the regression equation you found in question 6 to find the predicted memory scores for the following age: 28 For the calculations, leave two places after the decimal point and do not round: Use the regression equation you found in question 6 to find the predicted memory scores for the following age: 43 For the calculations, leave two places after the decimal point and do not round: Use the regression equation you found in question 6 to find the predicted memory scores for the following age: 50 For the calculations, leave two places after the decimal point and do not round:
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