TABLE 17-9
What are the factors that determine the acceleration time (in sec.) from 0 to 60 miles per hour of a car? Data on the following variables for 171 different vehicle models were collected:
Accel Time: Acceleration time in sec.
Cargo Vol: Cargo volume in cu.ft.
HP: Horsepower
MPG: Miles per gallon
SUV: 1 if the vehicle model is an SUV with Coupe as the base when SUV and Sedan are both 0
Sedan: 1 if the vehicle model is a sedan with Coupe as the base when SUV and Sedan are both 0
The regression results using acceleration time as the dependent variable and the remaining variables as the independent variables are presented below. The various residual plots are as shown below.
The coefficient of partial determination (
) of each of the 5 predictors are,respectively,0.0380,0.4376,0.0248,0.0188,and 0.0312.
The coefficient of multiple determination for the regression model using each of the 5 variables Xj as the dependent variable and all other X variables as independent variables ( ) are,respectively,0.7461,0.5676,0.6764,0.8582,0.6632.
-Referring to Table 17-9,what is the correct interpretation for the estimated coefficient for Sedan?
A) The mean 0 to 60 miles per hour acceleration time of a sedan is estimated to be 0.6427 seconds higher than that of a coupe after considering the effect of all the other independent variables in the model.
B) The mean 0 to 60 miles per hour acceleration time of a sedan is estimated to be 0.6427 seconds higher than that of an SUV after considering the effect of all the other independent variables in the model.
C) The mean 0 to 60 miles per hour acceleration time of a sedan is estimated to be 0.6427 seconds lower than that of a coupe after considering the effect of all the other independent variables in the model.
D) The mean 0 to 60 miles per hour acceleration time of a sedan is estimated to be 0.6427 seconds lower than that of an SUV after considering the effect of all the other independent variables in the model.
Correct Answer:
Verified
Q171: TABLE 17-9
What are the factors that determine
Q172: TABLE 17-9
What are the factors that determine
Q173: TABLE 17-8
The superintendent of a school district
Q174: TABLE 17-8
The superintendent of a school district
Q175: TABLE 17-9
What are the factors that determine
Q177: TABLE 17-8
The superintendent of a school district
Q178: TABLE 17-9
What are the factors that determine
Q179: TABLE 17-9
What are the factors that determine
Q180: TABLE 17-9
What are the factors that determine
Q181: TABLE 17-9
What are the factors that determine
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents