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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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Following is a portion of the regression output for an application relating maintenance expense (dollars per month) to usage (hours per week) for a particular brand of computer terminal.

question 12 attached in ss below

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Transcribed Image Text:Following is a portion of the regression output for an application relating maintenance expense (dollars per month) to usage (hours per week) for a particular brand of computer terminal. Excel File: data14-41.xlsx ANOVA Regression Residual Total Intercept Usage df 1 8 9 6.1092 0.8951 SS Coefficients Standard Error 0.9361 0.149 1575.76 349.14 1924.90 I MS t Stat F P-value Significance F If your answer is zero, enter "0". a. Write the estimated regression equation (to 4 decimals). ŷ = b. Use a t test to determine whether monthly maintenance expense is related to usage at the 0.05 level of significance (to 2 decimals). Use Table 2 of Appendix B. t= p-value= - Select your answer - the null hypothesis. Monthly maintenance expense - Select your answer - c. Did the estimated regression equation provide a good fit? Explain. Hint: If - Select your answer - V because the value of is-Select your answer related to usage. is greater than 0.50, the estimated regression equation provides a good fit. than 0.50.

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