A random sample of 30 married couples were asked to report the height of their spouse...
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A random sample of 30 married couples were asked to report the height of their spouse and the height of their biological parent of the same gender as their spouse. A regression equation for the data is provided below.
Spouse=48.40 + 0.25 Parent
What is the slope of the regression line? Choose the statement that is the correct interpretation of the slope in context.
The slope is 48.40. On average, for each one inch taller a parent is, the spouse is about 48.40 inches taller, in the sample
The slope is 48.40. On average, for each one inch increase in height for the parent, the spouse is about 0.25 inches taller.
The slope is 0.25. On average, for each 0.25 inch increase in the height of the parent , the spouse is about 1 inch taller, in the sample.
The slope is 0.25. On average, for each one inch increase in height for the parent, the spouse is about 0.25 inches taller.
Homework Answers
Solution :
Given that ,
Slope = 0.25
The slope of the regression line is ,
Spouse = 48.40 + 0.25 Parent
The statement that is the correct interpretation of the slope in context is ,
The slope is 0.25. On average, for each one inch increase in height for the parent, the spouse is about 0.25 inches taller.
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