Retail price data for n= 60 hard disk drives were recently reported in a computer magazine. Three variables were recorded for each hard disk drive: y = Retail PRICE (measured in dollars) x1 = Microprocessor SPEED (measured in megahertz) (Values in sample range from 10 to 40) x2 = CHIP size (measured in computer processing units) (Values in sample range from 286 to 486) A first-order regression model was fit to the data. Part of the printout follows: Analysis of Variance SOURCE DF MS F VALUE PROB>F MODEL 2 34593103.008 17296051.504 19.018 0.0001 ERROR 57 51840202.926 909477.24431 C TOTAL 59 86432305.933 ROOT MSE DEP MEAN C.V. 953.66516 3197.96667 0.4002 0.3792 R-SQUARE ADJ R-SQ 29.82099 Test to determine if the model is adequate for predicting the price of a computer. Use a = .01.

Retail price data for n= 60 hard disk drives were recently reported in a computer magazine. Three variables were recorded for each hard disk drive: y = Retail PRICE (measured in dollars) x1 = Microprocessor SPEED (measured in megahertz) (Values in sample range from 10 to 40) x2 = CHIP size (measured in computer processing units) (Values in sample range from 286 to 486) A first-order regression model was fit to the data. Part of the printout follows: Analysis of Variance SOURCE DF MS F VALUE PROB>F MODEL 2 34593103.008 17296051.504 19.018 0.0001 ERROR 57 51840202.926 909477.24431 C TOTAL 59 86432305.933 ROOT MSE DEP MEAN C.V. 953.66516 3197.96667 0.4002 0.3792 R-SQUARE ADJ R-SQ 29.82099 Test to determine if the model is adequate for predicting the price of a computer. Use a = .01.

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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