Quiz
Question 1 (2 points)
Saved
According to the following graphic, X and Y have:
Question 1 options:
1) strong negative correlation
2) virtually no correlation
3) strong positive correlation
4) moderate negative correlation
5) weak negative correlation
Question 2 (2 points)
Saved
A cost accountant is developing a regression model to predict the total cost
of producing a batch of printed circuit boards as a function of batch size
(the number of boards produced in one lot or batch). The independent variable
is:
Question 2 options:
1) batch size
2) unit variable cost
3) fixed cost
, 4) total cost
5) total variable cost
Question 3 (2 points)
Saved
A cost accountant is developing a regression model to predict the total cost
of producing a batch of printed circuit boards as a linear function of batch
size (the number of boards produced in one lot or batch). The intercept of
this model is the:
Question 3 options:
1) batch size
2) unit variable cost
3) fixed cost
4) total cost
5) total variable cost
Question 4 (2 points)
Saved
If x and y in a regression model are totally unrelated:
Question 4 options:
1) the correlation coefficient would be -1
2) the coefficient of determination would be 0
3) the coefficient of determination would be 1
4) the SSE would be 0
5) the MSE would be 0s
Question 5 (2 points)
A manager wishes to predict the annual cost (y) of an automobile
based on the number of miles (x) driven. The following model was
developed: y = 1,550 + 0.36x.
If a car is driven 10,000 miles, the predicted cost is:
Question 5 options:
1) 2,090
2) 3,850
Question 1 (2 points)
Saved
According to the following graphic, X and Y have:
Question 1 options:
1) strong negative correlation
2) virtually no correlation
3) strong positive correlation
4) moderate negative correlation
5) weak negative correlation
Question 2 (2 points)
Saved
A cost accountant is developing a regression model to predict the total cost
of producing a batch of printed circuit boards as a function of batch size
(the number of boards produced in one lot or batch). The independent variable
is:
Question 2 options:
1) batch size
2) unit variable cost
3) fixed cost
, 4) total cost
5) total variable cost
Question 3 (2 points)
Saved
A cost accountant is developing a regression model to predict the total cost
of producing a batch of printed circuit boards as a linear function of batch
size (the number of boards produced in one lot or batch). The intercept of
this model is the:
Question 3 options:
1) batch size
2) unit variable cost
3) fixed cost
4) total cost
5) total variable cost
Question 4 (2 points)
Saved
If x and y in a regression model are totally unrelated:
Question 4 options:
1) the correlation coefficient would be -1
2) the coefficient of determination would be 0
3) the coefficient of determination would be 1
4) the SSE would be 0
5) the MSE would be 0s
Question 5 (2 points)
A manager wishes to predict the annual cost (y) of an automobile
based on the number of miles (x) driven. The following model was
developed: y = 1,550 + 0.36x.
If a car is driven 10,000 miles, the predicted cost is:
Question 5 options:
1) 2,090
2) 3,850
