Regression Problems 17. A doctor wished to determine whether a relation exists between the height of a female and her weight. She obtained the heights and weights of 10 females aged 18 to 24. Let height be the independent variable x, measured in inches, a
Regression Problems
17. A doctor wished to determine whether a relation exists between the height of a female and her
weight. She obtained the heights and weights of 10 females aged 18 to 24. Let height be the
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Order Paper Nowindependent variable x, measured in inches, and weight be the dependent variable y, measured in
pounds.
x
60
61
62
62
64
65
65
67
68
68
y
100
105
110
112
115
120
124
130
132
137
a. Use a graphing utility to draw a scatter plot. Record the plot as accurately as possible on your
paper.
2
Fall 2003 – O’Brien
b. Use the regression capabilities of your graphing utility to find the equation of the line that best fits
the data. Include the correlation coefficient with your equation. Round to three decimal places.
c. Use your equation to predict the weight of a woman whose height is 66 inches. Show all of your work.
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