Data on x = the weight of a pickup truck (pounds) and y = distance (in feet) required for a truck traveling 40 miles per hour to come to a complete stop for 30 trucks was used to fit the least squares regression line . Which of the following statements is a correct interpretation of the value 0.05 in the equation of the regression line?
A) On average, the truck weight goes up 0.05 pound for each additional foot required to stop the truck.
B) On average, the stopping distance is 0.05 foot when the truck weight is 0.
C) The correlation coefficient for this data set is 0.05
D) On average, the stopping distance goes up 0.05 foot for each 1-pound increase in truck weight.
E) Approximately 5% of the variation in the stopping distances can be explained by the linear relationship between stopping distance and truck weight.
Correct Answer:
Verified
Q2: The slopes of the least squares lines
Q3: Pearson's correlation coefficient, r, does not depend
Q8: Of the following, which is true of
Q9: Which of the following indicates the range
Q12: A scatterplot showed a nonlinear relationship between
Q13: The value of the residual plus
Q15: If r is close to 1, then
Q15: Which of the following indicates the range
Q17: The higher the value of the coefficient
Q19: The value of Pearson's r is always
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents