A random sample of boarding school students was asked how many 8-ounce servings of soda they had consumed on a certain Sunday and how many hours of sleep they got that night. Their responses are displayed in the scatter plot below (a) Which variable is the explanatory and which is response? Identify if each variable is categorical or quantitative? Explanatory:______________________ Categorical or quantitative (circle one) Response:________________________ Categorical or quantitative (circle one) (b) What is the y-intercept of the least-squares regression line for this data? (b) Interpret the y-intercept by filling in the blanks: In general, a boarding school student who drinks ________ servings of soda tends to get Approximately ________ hours of sleep. (c) Interpret the meaning of r2 = 0.613 in this setting by filling in the blanks. The ___________________ for the LSR line, the number of _________________ that a boarding school student consumes can predict how much ________________ they get about ____________% of the time.
A random sample of boarding school students was asked how many 8-ounce servings of soda they had consumed on a certain Sunday and how many hours of sleep they got that night. Their responses are displayed in the scatter plot below (a) Which variable is the explanatory and which is response? Identify if each variable is categorical or quantitative? Explanatory:______________________ Categorical or quantitative (circle one) Response:________________________ Categorical or quantitative (circle one) (b) What is the y-intercept of the least-squares regression line for this data? (b) Interpret the y-intercept by filling in the blanks: In general, a boarding school student who drinks ________ servings of soda tends to get Approximately ________ hours of sleep. (c) Interpret the meaning of r2 = 0.613 in this setting by filling in the blanks. The ___________________ for the LSR line, the number of _________________ that a boarding school student consumes can predict how much ________________ they get about ____________% of the time.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A random sample of boarding school students was asked how many 8-ounce servings of soda they had consumed on a certain Sunday and how many hours of sleep they got that night. Their responses are displayed in the
(a) Which variable is the explanatory and which is response? Identify if each variable is categorical or quantitative?
Explanatory:______________________ Categorical or quantitative (circle one) Response:________________________ Categorical or quantitative (circle one)
(b) What is the y-intercept of the least-squares regression line for this data? (b) Interpret the y-intercept by filling in the blanks:
In general, a boarding school student who drinks ________ servings of soda tends to get Approximately ________ hours of sleep.
(c) Interpret the meaning of r2 = 0.613 in this setting by filling in the blanks.
The ___________________ for the LSR line, the number of _________________ that a boarding school student consumes can predict how much ________________ they get about ____________% of the time.
Transcribed Image Text:11.A random sample of boarding school students was asked how many 8-ounce servings of
soda they had consumed on a certain Sunday and how many hours of sleep they got that
night. Their responses are displayed in the scatter plot below.
8.5-
8-
7.5-
7-
6.5-
* 6-
5.5-
Soda
Sleep
6.
8
1
6.
1
7
2
7
3
3
8
4-
3.5-
3-
2.5-
2-
1.5-
4
6.
6.
3
6
7
4
7
6.
Number of 8 ounce soda servings
8.
3
10
2
Equation
n
ý = 7.385 – 0.457x 15 1.166 0.613
(a) Which variable is the explanatory and which is response? Identify if each variable is
categorical or quantitative?
Explanatory:
Categorical or quantitative (circle one)
Response:
Categorical or quantitative (circle one)
(b) What is the y-intercept of the least-squares regression line for this data?
(b) Interpret the y-intercept by filling in the blanks:
In general, a boarding school student who drinks
servings of soda tends to get
Approximately.
hours of sleep.
(c) Interpret the meaning of r2 = 0.613 in this setting by filling in the blanks.
The
for the LSR Iline, the number of
that a
boarding school student consumes can predict how much
they get
about
% of the time.
Sleep (hours)
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