The data table available below gives the annual cost per square foot of 50 commercial leases for office space in a city and the reciprocal of the number of square feet. Use the cost per square foot as the response variable and the reciprocal of the number of square feet as the explanatory variable to complete parts (a) through (c). (a) How many leases lie outside the 95% prediction intervals for leases of their size? Does the location regression?) these data indicate a problem with the fitted model? (Hint: Are all of these residuals on the same side, positive or negative, of the There are leases that lie outside the 95% prediction intervals. (Type a whole number.) Does this indicate a problem with the fitted model? O A. Yes, all of the residuals for these data are negative. O B. Yes, all of the residuals for these data are positive. OC. No, none of the leases lie outside the 95% prediction intervals. O D. No, the residuals for these data are evenly divided between positive and negative. (b) Given the context of the problem (costs of leasing commercial property), list several possible lurking variables that might be responsible for the size and position of leases with large residual costs. Which of the following are possible lurking variables? Select all that apply. O A. The condition of the building O B. The location of the city Oc. The type of business OD. The type of building OE. The age of the building OF. The location of the building within the city O G. The economic conditions in the city (c) The leases with the four largest residuals have something in common. What is it, and does it help you identify a lurking variable? What do the four leases with the largest residuals in terms of absolute value have in common? O A. The x-values for these leases are near the minimum x-value. O B. The x-values for these leases are near the maximum x-value. O c. The x-values for these leases are near the average x-value. O D. The x-values for these leases are the minimum and the maximum x-values. Does this help identify a lurking variable? v the prediction intervals are V for these x-values.
The data table available below gives the annual cost per square foot of 50 commercial leases for office space in a city and the reciprocal of the number of square feet. Use the cost per square foot as the response variable and the reciprocal of the number of square feet as the explanatory variable to complete parts (a) through (c). (a) How many leases lie outside the 95% prediction intervals for leases of their size? Does the location regression?) these data indicate a problem with the fitted model? (Hint: Are all of these residuals on the same side, positive or negative, of the There are leases that lie outside the 95% prediction intervals. (Type a whole number.) Does this indicate a problem with the fitted model? O A. Yes, all of the residuals for these data are negative. O B. Yes, all of the residuals for these data are positive. OC. No, none of the leases lie outside the 95% prediction intervals. O D. No, the residuals for these data are evenly divided between positive and negative. (b) Given the context of the problem (costs of leasing commercial property), list several possible lurking variables that might be responsible for the size and position of leases with large residual costs. Which of the following are possible lurking variables? Select all that apply. O A. The condition of the building O B. The location of the city Oc. The type of business OD. The type of building OE. The age of the building OF. The location of the building within the city O G. The economic conditions in the city (c) The leases with the four largest residuals have something in common. What is it, and does it help you identify a lurking variable? What do the four leases with the largest residuals in terms of absolute value have in common? O A. The x-values for these leases are near the minimum x-value. O B. The x-values for these leases are near the maximum x-value. O c. The x-values for these leases are near the average x-value. O D. The x-values for these leases are the minimum and the maximum x-values. Does this help identify a lurking variable? v the prediction intervals are V for these x-values.
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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