The slope 1 of the population regression line describes a. The exact increase in height (cm)
Question:
The slope β1 of the population regression line describes
a. The exact increase in height (cm) for students at this high school when foot length increases by 1 cm.
b. The average increase in foot length (cm) for students at this high school when height increases by 1 cm.
c. The average increase in height (cm) for students at this high school when foot length increases by 1 cm.
d. The average increase in foot length (cm) for students in the sample when height increases by 1 cm.
e. The average increase in height (cm) for students in the sample when foot length increases by 1 cm.
To see if students with longer feet tend to be taller, a random sample of 25 students was selected from a large high school. For each student, x = foot length (cm) and y = height (cm) were recorded. We checked that the conditions for inference about the slope of the population regression line are met. Here is a portion of the computer output from a least-squares regression analysis using these data:
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