Whether any pattern other than a linear relation-ship is seen in the original plot.

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Answer 1

Question

Chapter 12.6, Problem 12.36E

(a)

To determine

To explain: Whether any pattern other than a linear relation-ship is seen in the original plot.

(b)

To determine

To explain: the information about the fit of the regression line where the value of r2 is .959

(c)

To determine

To explain: whether there is any pattern in the residuals and explain whether the relationship between the number of months and the number of books written is something other than linear

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The following multiple regression printout can be used to predict a person's height (in inches) given his or her shoe size and gender, where gender = 1 for males and 0 for females. Regression Analysis: Height Versus Shoe Size, Gender Coefficients Term Coef SE Coef T-Value P-Value Constant 55.26 1.08 51.17 0.000 Shoe Size 1.167 0.17 0.000 Gender 2.578 0.482 5.35 0.000 (a) Find the value of the test statistic for shoe size. (Round your answer to two decimal places.) t = ?? (b) Is the regression coefficient of shoe size statistically significant? (Use ? = 0.05.) The regression coefficient of shoe size is/is not statistically significant. (c) Does the variable shoe size belong in the model? The variable shoe size may/may not belong in the model. (d) Interpret the regression coefficient of Gender. Males are (??) inches taller than females, on average, controlling for shoe size.

Suppose Wesley is a marine biologist who is interested in the relationship between the age and the size of male Dungeness crabs. Wesley collects data on 1,000 crabs and uses the data to develop the following least-squares regression line where ?X is the age of the crab in months and ?ˆY^ is the predicted value of ?Y, the size of the male crab in cm. ?ˆ=9.5603+0.3976?Y^=9.5603+0.3976X What is the value of ?ˆY^ when a male crab is 24.9118 months old? Provide your answer with precision to two decimal places. Y=

Answer 2

Question

Chapter 12.6, Problem 12.36E

(a)

To determine

To explain: Whether any pattern other than a linear relation-ship is seen in the original plot.

(b)

To determine

To explain: the information about the fit of the regression line where the value of r2 is .959

(c)

To determine

To explain: whether there is any pattern in the residuals and explain whether the relationship between the number of months and the number of books written is something other than linear

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Answer 3

Question

Chapter 12.6, Problem 12.36E

(a)

To determine

To explain: Whether any pattern other than a linear relation-ship is seen in the original plot.

(b)

To determine

To explain: the information about the fit of the regression line where the value of r2 is .959

(c)

To determine

To explain: whether there is any pattern in the residuals and explain whether the relationship between the number of months and the number of books written is something other than linear

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Answer 4

Question

Chapter 12.6, Problem 12.36E

(a)

To determine

To explain: Whether any pattern other than a linear relation-ship is seen in the original plot.

(b)

To determine

To explain: the information about the fit of the regression line where the value of r2 is .959

(c)

To determine

To explain: whether there is any pattern in the residuals and explain whether the relationship between the number of months and the number of books written is something other than linear

Expert Solution & Answer

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Answer 5

Chapter 12.6, Problem 12.36E

(a)

To determine

To explain: Whether any pattern other than a linear relation-ship is seen in the original plot.

(b)

To determine

To explain: the information about the fit of the regression line where the value of r2 is .959

(c)

To determine

To explain: whether there is any pattern in the residuals and explain whether the relationship between the number of months and the number of books written is something other than linear

Answer 6

Chapter 12.6, Problem 12.36E

(a)

To determine

To explain: Whether any pattern other than a linear relation-ship is seen in the original plot.

Answer 7

Chapter 12.6, Problem 12.36E

(a)

To determine

To explain: Whether any pattern other than a linear relation-ship is seen in the original plot.

Answer 8

(b)

To determine

To explain: the information about the fit of the regression line where the value of r2 is .959

Answer 9

(b)

To determine

To explain: the information about the fit of the regression line where the value of r2 is .959

Answer 10

(c)

To determine

To explain: whether there is any pattern in the residuals and explain whether the relationship between the number of months and the number of books written is something other than linear

Answer 11

(c)

To determine

To explain: whether there is any pattern in the residuals and explain whether the relationship between the number of months and the number of books written is something other than linear

Answer 12

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Answer 13

Expert Solution & Answer

Answer 14

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Answer 15

Ch. 12.4 - Prob. 12.1E Ch. 12.4 - Prob. 12.2E Ch. 12.4 - Prob. 12.3E Ch. 12.4 - Prob. 12.4E Ch. 12.4 - Prob. 12.5E Ch. 12.4 - You are given five points with these coordinates:...Ch. 12.4 - Prob. 12.7E Ch. 12.4 - Prob. 12.8E Ch. 12.4 - Prob. 12.9E Ch. 12.4 - Prob. 12.10E

Whether any pattern other than a linear relation-ship is seen in the original plot.

Solution Summary: The author explains that there is a slight curvature in the scatterplot. The coefficient of determination measures the proportion of variation between variables that is explained by the lest-square regression model.

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To explain: Whether any pattern other than a linear relation-ship is seen in the original plot.

To explain: the information about the fit of the regression line where the value of r2 is .959

To explain: whether there is any pattern in the residuals and explain whether the relationship between the number of months and the number of books written is something other than linear

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