Use the following information for questions:
A regression between foot length (response variable in cm) and height (explanatory variable in inches) for 33 students resulted in the following regression equation: $\hat{y}$ = 10.9 + 0.23x
-One student in the sample was 73 inches tall with a foot length of 29 cm. What is the predicted foot length for this student?
A) 17.57 cm
B) 27.69 cm
C) 29 cm
D) 33 cm

Question

Use the following information for questions:
 A regression between foot length (response variable in cm) and height (explanatory variable in inches) for 33 students resulted in the following regression equation: $\hat{y}$ = 10.9 + 0.23x
-One student in the sample was 73 inches tall with a foot length of 29 cm. What is the predicted foot length for this student?
A) 17.57 cm
B) 27.69 cm
C) 29 cm
D) 33 cm

Quizplus · Accepted Answer

To find the predicted foot length for a student who is 73 inches tall, substitute x = 73 into the regression equation $\hat{y}$ = 10.9 + 0.23x. This gives $\hat{y}$ = 10.9 + 0.23(73) = 10.9 + 16.79 = 27.69 cm.

Use the Following Information for Questions: a Regression Between y^\hat{y}y^​

Use the Following Information for Questions:
a Regression Between $\hat{y}$