MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Parts a through d please, thank you!
Data were collected that included information on the weight of the trash (in pounds) on the street one week and the number of people who live in the house. The figure shows a scatterplot with the
regression line. Complete parts (a) through (d) below.
Click the icon to view the scatterplot and the regression line
a. Is the trend positive or negative? What does that mean?
The trend is
As the number of people per household increases, the weight of trash
b. Now calculate the correlation between the weight of trash and the number of people. (Use R-Sq from the figure and take the square root of it.)
r=
(Round to two decimal places as needed.).
c. Report the slope. For each additional person in the house, there are, on average, how many additional pounds of trash?
The slope is
For each additional person in the house, there are, on average,
additional pounds of trash. (Type integers or decimals. Do not round.)
d. Either interpret the intercept or explain why it is not appropriate to interpret it. Select the correct choice below and fill in the answer box(es) to complete your choice.
(Type integers or decimals. Do not round.)
OA. The predicted weight of trash is
times the number of people living in the household.
OB. For each additional pound of trash, there is/are, on average,
additional person/people per household.
OC. One would expect a household with
person/people to generate
pound(s) of trash.
OD. It is inappropriate to interpret the intercept because it does not make sense to think of a household with
person/people generating trash.
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Transcribed Image Text:Data were collected that included information on the weight of the trash (in pounds) on the street one week and the number of people who live in the house. The figure shows a scatterplot with the regression line. Complete parts (a) through (d) below. Click the icon to view the scatterplot and the regression line a. Is the trend positive or negative? What does that mean? The trend is As the number of people per household increases, the weight of trash b. Now calculate the correlation between the weight of trash and the number of people. (Use R-Sq from the figure and take the square root of it.) r= (Round to two decimal places as needed.). c. Report the slope. For each additional person in the house, there are, on average, how many additional pounds of trash? The slope is For each additional person in the house, there are, on average, additional pounds of trash. (Type integers or decimals. Do not round.) d. Either interpret the intercept or explain why it is not appropriate to interpret it. Select the correct choice below and fill in the answer box(es) to complete your choice. (Type integers or decimals. Do not round.) OA. The predicted weight of trash is times the number of people living in the household. OB. For each additional pound of trash, there is/are, on average, additional person/people per household. OC. One would expect a household with person/people to generate pound(s) of trash. OD. It is inappropriate to interpret the intercept because it does not make sense to think of a household with person/people generating trash.
Scatterplot and Regression Line
Trash (pounds)
Predicted Trash = 2.630 + 11.16 People
100-
80-
R-sq = 76.8%
60-
40-
20-
0
1
2
3
People per Household
-
expand button
Transcribed Image Text:Scatterplot and Regression Line Trash (pounds) Predicted Trash = 2.630 + 11.16 People 100- 80- R-sq = 76.8% 60- 40- 20- 0 1 2 3 People per Household -
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