Ch 13. 7: Refer to the Lincolnville School District bus data. First, add a variable to change the type of engine (diesel or gasoline) to a qualitative variable. If the engine type is diesel, then set the qualitative variable to 0. If the engine type is gasoline, then set the qualitative variable to 1. Develop a regression equation using statistical software with maintenance cost as the dependent variable and age, odometer miles, miles since last maintenance, and engine type as the independent variables. a-1. Develop a correlation matrix. (Negative amounts should be indicated by a minus sign. Round your answers to 4 decimalplaces.)Maintenancecost ($)Miles since lastAge (years)Odometer MilesMaintenanceMaintenance cost ($)Age (years)Odometer MilesMiles since last Maintenance1a-2. Which independent variables have strong or weak correlations with the dependent variable?There is a|correlation between age and maintenance cost.a-3. Do you see any problems with multicollinearity?YesO No b-1. Use a statistical software package to determine the multiple regression equation.Maintenance Costs =Age.Use a statistical software package to determine the multiple regression equation. (Negative amounts should be indicated by a minussign. Round your answers to 3 decimal places.)Maintenance Costs =Age +Engine type.b-2. What is the value of R2. (Round your answer to 1 decimal place.)%

a-1. We have to develop a correlation matrix to do this we follow the steps in the minitab : 1.…

Maintenance Age (years) Miles since last Maintenance Odometer Miles cost ($) Maintenance cost (S) 1 Age (years) Odometer Miles 1 Miles since last Maintenance -2. Which independent variables have strong or weak correlations with the dependent variable? correlation between age and maintenance cost. There is a -3. Do you see any problems with multicollinearity? Yes O No

Maintenance Age (years) Miles since last Maintenance Odometer Miles cost ($) Maintenance cost (S) 1 Age (years) Odometer Miles 1 Miles since last Maintenance -2. Which independent variables have strong or weak correlations with the dependent variable? correlation between age and maintenance cost. There is a -3. Do you see any problems with multicollinearity? Yes O No

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 13PPS

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Question

Ch 13. 7: Refer to the Lincolnville School District bus data. First, add a variable to change the type of engine (diesel or gasoline) to a qualitative variable. If the engine type is diesel, then set the qualitative variable to 0. If the engine type is gasoline, then set the qualitative variable to 1. Develop a regression equation using statistical software with maintenance cost as the dependent variable and age, odometer miles, miles since last maintenance, and engine type as the independent variables.