TABLE 13-12
The manager of the purchasing department of a large banking organization would like to develop a model to predict the amount of time (measured in hours) it takes to process invoices. Data are collected from a sample of 30 days, and the number of invoices processed and completion time in hours is recorded. Below is the regression output:
Note: 4.3946E-15 is 4.3946×10 -15

-Referring to Table 13-12, the degrees of freedom for the t test on whether the number of invoices processed affects the amount of time are
A) 1.
B) 28.
C) 29.
D) 30.

Question

TABLE 13-12
The manager of the purchasing department of a large banking organization would like to develop a model to predict the amount of time (measured in hours) it takes to process invoices. Data are collected from a sample of 30 days, and the number of invoices processed and completion time in hours is recorded. Below is the regression output:
  Note: 4.3946E-15 is 4.3946×10 -15 
  
-Referring to Table 13-12, the degrees of freedom for the t test on whether the number of invoices processed affects the amount of time are
A) 1. 
B) 28. 
C) 29. 
D) 30.

Quizplus · Accepted Answer

The Answer of TABLE 13-12
The manager of the purchasing department of a large banking organization would like to develop a model to predict the amount of time (measured in hours) it takes to process invoices. Data are collected from a sample of 30 days, and the number of invoices processed and completion time in hours is recorded. Below is the regression output:
  Note: 4.3946E-15 is 4.3946×10 -15 
  
-Referring to Table 13-12, the degrees of freedom for the t test on whether the number of invoices processed affects the amount of time are
A) 1. 
B) 28. 
C) 29. 
D) 30.

TABLE 13-12 The Manager of the Purchasing Department of a Large Banking