# Question

The table shows the heights and weights of some people. The scatterplot shows that the association is linear enough to proceed.

Height (inches) Weight (pounds)

60 .............. 105

66 .............. 140

72 .............. 185

70 .............. 145

63 .............. 120

a. Calculate the correlation, and find and report the equation of the regression line, using height as the predictor and weight as the response.

b. Change the height to centimeters by multiplying each height in inches by 2.54. Find the weight in kilograms by dividing the weight in pounds by 2.205. Retain at least six digits in each number so there will be no errors due to rounding.

c. Report the correlation between height in centimeters and weight in kilograms, and compare it with the correlation between the height in inches and weight in pounds.

d. Find the equation of the regression line for predicting weight from height, using height in cm and weight in kg. Is the equation for weight (in pounds) and height (in inches) the same as or different from the equation for weight (in kg) and height (in cm)?

Height (inches) Weight (pounds)

60 .............. 105

66 .............. 140

72 .............. 185

70 .............. 145

63 .............. 120

a. Calculate the correlation, and find and report the equation of the regression line, using height as the predictor and weight as the response.

b. Change the height to centimeters by multiplying each height in inches by 2.54. Find the weight in kilograms by dividing the weight in pounds by 2.205. Retain at least six digits in each number so there will be no errors due to rounding.

c. Report the correlation between height in centimeters and weight in kilograms, and compare it with the correlation between the height in inches and weight in pounds.

d. Find the equation of the regression line for predicting weight from height, using height in cm and weight in kg. Is the equation for weight (in pounds) and height (in inches) the same as or different from the equation for weight (in kg) and height (in cm)?

## Answer to relevant Questions

The table shows the heights (in inches) and weights (in pounds) of 14 college men. The scatterplot shows that the association is linear enough to proceed. a. Find the equation for the regression line with weight (in pounds) ...a. The figure shows hypothetical data for a group of children. By looking at the figure, state whether the correlation between height and test score is positive, negative, or near zero. b. The shape and color of the each ...The scatterplot shows information about the world’s tallest 169 buildings. “Stories” means “Floors.” a. What does the trend tell us about the relationship between stories and height (feet)? b. The regression line ...If we flip a coin 10 times, how often do we get 6 or more heads? A first step to answering this question would be to simulate 10 flips. Use the random number table in Appendix A to simulate flipping a coin 10 times. Let odd ...The General Social Survey (GSS) is a survey done nearly every year at the University of Chicago. One survey, summarized in the table, asked each respondent to report her or his political party affiliation and whether she or ...Post your question

0