What does the value for the coefficient mean in the regression analysis of both the company ? P-Values - how its related to customer satisfaction in the regression analysis of both the company ?
What does the value for the coefficient mean in the regression analysis of both the company ? P-Values - how its related to customer satisfaction in the regression analysis of both the company ?
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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What does the value for the coefficient mean in the regression analysis of both the company ?
P-Values - how its related to customer satisfaction in the regression analysis of both the company ?
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Transcribed Image Text:Stepwise Regression for Customer Satisfaction
Summary
ANOVA Table
Explained
Unexplained
Regression Table
Constant
Overall experiences SATISFACTION with AMAZON
Attractiveness of promotions and discounts offered
Availability of products
Ease of managing your shopping cart
Check-out and payment process
Return and exchange policies
Variety of products that interests me
Step Information
Overall experiences SATISFACTION with AMAZON
Attractiveness of promotions and discounts offered
Availability of products
Ease of managing your shopping cart
Check-out and payment process
Return and exchange policies
Variety of products that interests me
Multiple
R
0.9218
Degrees of
Freedom
7
192
Coefficient
Multiple
R
R-Square
0.8900
0.9019
0.9095
0.9141
0.9171
0.9198
0.9218
0.8498
Sum of
Squares
Standard
Error
Adjusted
R-square
0.8443
R-Square
Mean of
Squares
275.2596606 39.32280866 155.1567325
48.66033939 0.253439268
0.7920
0.8134
0.8272
0.8356
0.8410
0.8460
0.8498
t-Value
-1.175650684 0.356010918 -3.302288286 0.0011
0.650562743 0.037808352 17.20685256 < 0.0001
0.104418655 0.030391701 3.435762106 0.0007
0.108206379 0.034817751 3.107793454 0.0022
0.100683803 0.034802557 2.893000169 0.0043
0.088201665 0.036571028 2.411790702 0.0168
-0.002354944 0.000986141 -2.388039316 0.0179
0.089266709 0.040879106 2.183675699 0.0302
Std. Err. of
Estimate
0.50342752
Adjusted
R-square
F
0.7910
0.8115
0.8246
0.8323
0.8369
0.8413
0.8443
p-Value
Std. Err. of
Estimate
0.583313837
0.553927569
0.534346896
0.522535174
0.515259286
0.50831862
0.50342752
Rows
Ignored
0
p-Value
< 0.0001
Enter or
Exit
Confidence Interval 95%
Lower
Upper
-1.87784537 -0.473455999
0.575989681 0.725135804
0.044474171 0.16436314
0.039531969 0.176880789
0.032039362 0.169328245
0.016069098 0.160334233
-0.004300005 -0.000409882
0.008636905 0.169896514
Enter
Enter
Enter
Outliers
Enter
Enter
Enter
Enter
0
Transcribed Image Text:Stepwise Regression for Customer Satisfaction
Summary
ANOVA Table
Explained
Unexplained
Regression Table
Constant
Overall experiences SATISFACTION with QO010
Sufficiency of Product information
Ease of comparing products
Availability of products
Ease of indicating special requests
Variety of products that interests me
Step Information
Overall experiences SATISFACTION with QO010
Sufficiency of Product information
Ease of comparing products
Availability of products
Ease of indicating special requests
Variety of products that interests me
Multiple
R
0.9042
Degrees of
Freedom
6
193
Coefficient
Multiple
R
R-Square
0.8865
0.8925
0.8966
0.8991
0.9016
0.9042
0.8176
Sum of
Squares
Standard
Error
250.7856697 41.79761162
55.93433028 0.289815183
Adjusted
R-square
0.8120
R-Square
Mean of
Squares
0.7859
0.7966
0.8039
0.8085
0.8128
0.8176
t-Value
-0.217270506 0.350478942 -0.619924565 0.5360
0.688174109 0.043293281 15.89563319 < 0.0001
0.07175455 0.03667907 1.956280555 0.0519
0.081436842 0.036042429 2.259471539 0.0250
0.098373018 0.038465928 2.557406575 0.0113
-0.003101656 0.00132424 -2.342216078 0.0202
0.087626065 0.038904859 2.252316741 0.0254
Adjusted
R-square
Std. Err. of
Estimate
0.7848
0.7946
0.8009
0.8045
0.8080
0.8120
0.538344855
F
144.2216078
p-Value
Std. Err. of
Estimate
0.5758754
0.562691745
0.554023389
0.548880872
0.543966639
0.538344855
Rows
Ignored
0
p-Value
< 0.0001
Outliers
Confidence Interval 95%
Enter or
Exit
0
Lower
Upper
-0.908531225 0.473990213
0.6027854 0.773562818
-0.00058874 0.144097841
0.010349218 0.152524467
0.022505449 0.174240587
-0.005713496 -0.000489816
0.01089278 0.164359351
Enter
Enter
Enter
Enter
Enter
Enter
Solution
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