Biology Forums - Study Force

Cincinnati Paint Company sells quality brands of paints through hardware stores throughout the United States. The company maintains a large sales force whose job it is to call on existing customers as well as look for new business. The national sales manager is investigating the relationship between the number of sales calls made and the miles driven by the sales representative. Also, do the sales representatives who drive the most miles and make the most calls necessarily earn the most in sales commissions? To investigate, the vice president of sales selected a sample of 25 sales representatives and determined:
 
• The amount earned in commissions last month (Y)
• The number of miles driven last month (X1)
• The number of sales calls made last month (X2)
 
The information is reported below.
 
Commissions    Calls         Driven   
($000)      
22          139            2,371   
13         132            2,226   
33         144            2,731   
38         142            3,351   
23         142            2,289   
47         142            3,449   
29         138            3,114   
38         139            3,342   
41         144            2,842   
32         134            2,625   
20         135            2,121   
13         137            2,219   
47         146                 3,463           
38          146            3,290
44          144            3,103
29         147            2,122
38         144            2,791
37         149            3,209
14         131            2,287
34         144            2,848
25         132            2,690
27         132            2,933
25         127            2,671
43         154            2,988
34          147            2,829
 
Develop a regression equation including an interaction term. (Round your answers to 3 decimal places. Negative amounts should be indicated by a minus sign.)

Commissions = _____+ _____ Calls + ____ Miles + _____ X1X2
 
Complete the following table. (Round your answers to 3 decimal places. Negative amounts should be indicated by a minus sign.)
 
Predictor        Coef       SE      Coef      T       P
Constant        ____      ___     ____   ___   ____
Calls        ____      ___     ____   ___   ____
Miles        ____      ___     ____   ___   ____
X1X2        ____      ___     ____   ___   ____
     
      
Compute the value of the test statistic corresponding to the interaction term. (Round your answer to 2 decimal places. Negative amount should be indicated by a minus sign.)
Value of the test statistic:____?
  

Hi again

Another answer for you...

What is the Constant Coefficient rounded to 3 places instead of the 1 place? And what is the constant SE Coefficient rounded to 3 places instead of the 1 place?

Which part of the question is that from?

Also, you may have noticed some of your posts disappeared. We backed up a faulty database, apologies.

This part. (:
Complete the following table. (Round your answers to 3 decimal places. Negative amounts should be indicated by a minus sign.)
 
Predictor        Coef       SE     
Constant        ____      ___

I"m not completely sure, but here's a resource that might help you

Thank you!

:)

Thank you!

This is so great!