Obtain the equation of the least-squares line.

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Answer 1

Question

Chapter 5.3, Problem 35E

a.

To determine

Obtain the equation of the least-squares line.

b.

To determine

Find the residuals.

Construct the residual plot.

c.

To determine

Explain whether the residual plot suggests that a linear relationship between the two variables is reasonable.

d.

To determine

Explain whether it is reasonable to predict the average swim distance for women in the age group 45–49 years, by substituting the representative age as 45, in the regression equation obtained for this data.

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The data in the table represent the number of licensed drivers in various age groups and the number of fatal accidents within the age group by gender. Complete parts (a) to (c) below. E Click the icon to view the data table. ked Бcor (a) Find the least-squares regression line for males treating the number of licensed drivers as the explanatory variable, x, and the number of fatal crashes, y, as the response variable. Repeat this procedure for females. Find the least-squares regression line for males. Data for licensed drivers by age and gender. (Round the slope to three decimal places and round the constan ion estion 4 Number of Number of tion Number of Male Fatal Licensed Drivers Crashes Number of Female Fatal Licensed Drivers (000s) Crashes Age (000s) (Males) (Females) 74 4,803 2,022 5,375 973 Enter your answer in the edit fields and then click Check Ans Print Done parts remaining

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Answer 2

Question

Chapter 5.3, Problem 35E

a.

To determine

Obtain the equation of the least-squares line.

b.

To determine

Find the residuals.

Construct the residual plot.

c.

To determine

Explain whether the residual plot suggests that a linear relationship between the two variables is reasonable.

d.

To determine

Explain whether it is reasonable to predict the average swim distance for women in the age group 45–49 years, by substituting the representative age as 45, in the regression equation obtained for this data.

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Check out a sample textbook solution

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Answer 3

Question

Chapter 5.3, Problem 35E

a.

To determine

Obtain the equation of the least-squares line.

b.

To determine

Find the residuals.

Construct the residual plot.

c.

To determine

Explain whether the residual plot suggests that a linear relationship between the two variables is reasonable.

d.

To determine

Explain whether it is reasonable to predict the average swim distance for women in the age group 45–49 years, by substituting the representative age as 45, in the regression equation obtained for this data.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Chapter 5.3, Problem 35E

a.

To determine

Obtain the equation of the least-squares line.

b.

To determine

Find the residuals.

Construct the residual plot.

c.

To determine

Explain whether the residual plot suggests that a linear relationship between the two variables is reasonable.

d.

To determine

Explain whether it is reasonable to predict the average swim distance for women in the age group 45–49 years, by substituting the representative age as 45, in the regression equation obtained for this data.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 5

Chapter 5.3, Problem 35E

a.

To determine

Obtain the equation of the least-squares line.

b.

To determine

Find the residuals.

Construct the residual plot.

c.

To determine

Explain whether the residual plot suggests that a linear relationship between the two variables is reasonable.

d.

To determine

Explain whether it is reasonable to predict the average swim distance for women in the age group 45–49 years, by substituting the representative age as 45, in the regression equation obtained for this data.

Answer 6

Chapter 5.3, Problem 35E

a.

To determine

Obtain the equation of the least-squares line.

Answer 7

Chapter 5.3, Problem 35E

a.

To determine

Obtain the equation of the least-squares line.

Answer 8

b.

To determine

Find the residuals.

Construct the residual plot.

Answer 9

b.

To determine

Find the residuals.

Construct the residual plot.

Answer 10

c.

To determine

Explain whether the residual plot suggests that a linear relationship between the two variables is reasonable.

Answer 11

c.

To determine

Explain whether the residual plot suggests that a linear relationship between the two variables is reasonable.

Answer 12

d.

To determine

Explain whether it is reasonable to predict the average swim distance for women in the age group 45–49 years, by substituting the representative age as 45, in the regression equation obtained for this data.

Answer 13

d.

To determine

Explain whether it is reasonable to predict the average swim distance for women in the age group 45–49 years, by substituting the representative age as 45, in the regression equation obtained for this data.

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 5.1 - For each of the scatterplots shown, answer the...Ch. 5.1 - For each of the following pairs of variables,...Ch. 5.1 - Is the following statement correct? Explain why or...Ch. 5.1 - Prob. 4E Ch. 5.1 - Prob. 5E Ch. 5.1 - The accompanying data are x = Cost (cents per...Ch. 5.1 - The authors of the paper Flat-footedness Is Not a...Ch. 5.1 - Prob. 8E Ch. 5.1 - Prob. 9E Ch. 5.1 - The accompanying data were read from graphs that...

Obtain the equation of the least-squares line.

Solution Summary: The author explains how the least-squares equation can be drawn using the MINITAB software.

Concept explainers

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Obtain the equation of the least-squares line.

Find the residuals.

Construct the residual plot.

Explain whether the residual plot suggests that a linear relationship between the two variables is reasonable.

Explain whether it is reasonable to predict the average swim distance for women in the age group 45–49 years, by substituting the representative age as 45, in the regression equation obtained for this data.

Want to see the full answer?

Chapter 5 Solutions

Obtain the equation of the least-squares line.

Solution Summary: The author explains how the least-squares equation can be drawn using the MINITAB software.

Concept explainers

Videos

Obtain the equation of the least-squares line.

Find the residuals. Construct the residual plot.

Explain whether the residual plot suggests that a linear relationship between the two variables is reasonable.

Explain whether it is reasonable to predict the average swim distance for women in the age group 45–49 years, by substituting the representative age as 45, in the regression equation obtained for this data.

Want to see the full answer?

Chapter 5 Solutions

Find the residuals.

Construct the residual plot.