Solved by Expert Tutors
Solved by Expert Tutors
Question

The owner of a moving company typically has his most experienced manager predict the total number of labor hours that will be required for an upcoming move. In an effort to provide a more accurate​ method, the owner has decided to use the number of cubic feet moved as the independent variable and has collected data for 20 moves in which the travel time was an insignificant portion of the hours worked. Use the data provided to complete parts​ (a) through​ (d) below.

The owner of a moving company typically has his most experienced manager predict the total number of labor hours that will be required to complete an upcoming move. In an effort to provide a more accurate method, the owner has decided to use the number of cubic feet
moved as the independent variable and has collected data for 20 moves in which the travel time was an insignificant portion of the hours worked. Use the data provided to complete parts (a) through (d) below.
Click the icon to view the data table.
a. Construct a scatter plot. Choose the correct graph below.
O A.
O B.
Q
OC.
OD.
60-
60
900-
900-
Hours
Hour
Cubic Feet
Q
Cubic Feet
900
Cubic Feet
Cubic Feet
900
60
Hours
Hours
b. Assuming a linear relationship, use the least-squares method to determine the regression coefficients bo and b,
bo =
b, =
Round to three decimal places as needed.)
b. Assuming a linear relationship, use the least-squares method to determine the regression coefficients bo and by-
by =
b, =
(Round to three decimal places as needed.)
C. Interpret the meaning of the slope, b,, in this problem. Choose the correct answer below.
O A. The approximate number of cubic feet moved when the number of labor hours is 0 hours is by-
O B. For each increase of one labor hour, the number of cubic feet moved is expected to increase by by-
O C. For each increase of one cubic foot moved, the number of labor hours is expected to increase by b, hours.
O D. The approximate number of labor hours is when the number of cubic feet moved is 0 cubic feet is b, hours
d. Predict the mean labor hours for moving 800 cubic feet.
hours
(Round to two decimal places as needed.)
e. What should you tell the owner of the moving company about the relationship between cubic feet moved and labor hours?
A. As the amount to be moved increases, the labor hours decrease. As expected, the labor hours are affected by the amount to be moved.
O B. As expected. the labor hours are not affected by the amount to be moved.
O C. As expected, the labor hours are affected by the amount to be moved. As the amount to be moved increases, the labor hours increase.
O D. As the labor hours increase the amount to be moved decreases. As expected, the amount to be moved is affected by the labor hours.

The student who asked this found it Helpful

sus ante, dapibus a m

s

x0cing e

xfor nec

t

ipsum dolor sit amet, consectetur adipiscing elit. Nam lacinia pulvinar tortor nec facilisis. Pellentesque dapibus

ff

sque dapibus efficitur

f

rem ipsum dolor sit amet, consectetur adipiscing elit. Nam lacinia pulvinar tortor nec facilisis. Pellentesque dapibus efficitur laoreet.

acinia pulvi

u ipsum dolor s entesqu lesti amet risu et, co icitur laor o. Donec ur l usce d , co usce dui lectus, congue vel l facilisis. m ipsum at, ul ici le risus ante, d Fusce cing el ipiscing e cing elit

### Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

• ### -

Study Documents

Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

Browse Documents