Problem 6-5. The CEO of a well known car seller company wants to determine the f
ID: 3362858 • Letter: P
Question
Problem 6-5. The CEO of a well known car seller company wants to determine the factors having an influence on the percentage amount of car sales. The table bellow shows the result of a regression after setting a model with variables available.
The model includes the variable CONVERTIBLE which equals 1 if the car is convertible, zero otherwise.
The interpretation for the Convertible coefficient is........
Coefficientsa
Model
Unstandardized Coefficients
Standardized Coefficients
t
Sig.
B
Std. Error
Beta
1
(Constant)
-2.210
1.930
-1.145
.285
Dependability
.550
.272
.384
2.024
.078
Interiorcomfort
.252
.180
.270
1.399
.199
Acceleration
.448
.233
.429
1.921
.091
Convertible
.100
.204
-.187
-1.179
.272
a. Dependent Variable: Sales
Coefficientsa
Model
Unstandardized Coefficients
Standardized Coefficients
t
Sig.
B
Std. Error
Beta
1
(Constant)
-2.210
1.930
-1.145
.285
Dependability
.550
.272
.384
2.024
.078
Interiorcomfort
.252
.180
.270
1.399
.199
Acceleration
.448
.233
.429
1.921
.091
Convertible
.100
.204
-.187
-1.179
.272
a. Dependent Variable: Sales
Explanation / Answer
The convertible coefficient given here is 0.1,
Now as this is a binary dummy variable, and it is positive, therefore for a convertible the sales are 10% greater. which also means that Sales of non convertible cars are 10% less than sales of convertibles
Therefore A is the correct answer here.
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