(c) Does a linear relation exist between the number of reported cases of Lyme disease and the number of drowning deaths? Do you believe that an increase of Lyme disease causes an increase in drowning deaths? What is a likely lurking variable between cases of Lyme disease and drowning deaths? The variables Lyme disease and drowning deaths are (Round to three decimal places as needed.) associated because ris and the absolute value of the correlation coefficient, is than the critical value,

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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The data below represent commute times (in minutes) and scores on a well-being survey. Complete parts (a) through (d) below.
Commute Time (minutes), x
Well-Being Index Score, y
15 25 35 50 72 105
68.3 67.4 67.0 66.2 65.8 63.4
5
69.2
(a) Find the least-squares regression line treating the commute time, x, as the explanatory variable and the index score, y, as the response variable.
ŷ=x+
(Round to three decimal places as needed.)
Transcribed Image Text:The data below represent commute times (in minutes) and scores on a well-being survey. Complete parts (a) through (d) below. Commute Time (minutes), x Well-Being Index Score, y 15 25 35 50 72 105 68.3 67.4 67.0 66.2 65.8 63.4 5 69.2 (a) Find the least-squares regression line treating the commute time, x, as the explanatory variable and the index score, y, as the response variable. ŷ=x+ (Round to three decimal places as needed.)
Lyme disease is an inflammatory disease that results in a skin rash and flulike symptoms. It is transmitted through the bite of an infected deer tick. The following data represent the number of reported cases of Lyme disease and the number
of drowning deaths for a rural county. Complete parts (a) through (c) below.
Click here to view the table of Lyme disease and drowning deaths.
Click here to view the critical values table.
(a) Draw a scatter diagram of the data. Let the number of reported cases of Lyme disease be the explanatory variable. Choose the correct graph below.
O A.
20+
Drownings
Lyme Disease
B.
20+
The variables Lyme disease and drowning deaths are
(Round to three decimal places as needed.)
Drownings
Lyme Disease
30
(b) Determine the linear correlation coefficient between Lyme disease and drowning deaths.
The linear correlation coefficient between Lyme disease and drowning deaths is r = 0.958.
(Round to three decimal places as needed.)
O C.
associated because ris
20+
Drownings
|
Lyme Disease
30
Q
and the absolute value of the correlation coefficient,
OD.
, is
20-
0-
(c) Does a linear relation exist between the number of reported cases of Lyme disease and the number of drowning deaths? Do you believe that an increase of Lyme disease causes an increase in drowning deaths? What is a likely lurking
variable between cases of Lyme disease and drowning deaths?
0
Drownings
T
Lyme Disease
than the critical value, .
Transcribed Image Text:Lyme disease is an inflammatory disease that results in a skin rash and flulike symptoms. It is transmitted through the bite of an infected deer tick. The following data represent the number of reported cases of Lyme disease and the number of drowning deaths for a rural county. Complete parts (a) through (c) below. Click here to view the table of Lyme disease and drowning deaths. Click here to view the critical values table. (a) Draw a scatter diagram of the data. Let the number of reported cases of Lyme disease be the explanatory variable. Choose the correct graph below. O A. 20+ Drownings Lyme Disease B. 20+ The variables Lyme disease and drowning deaths are (Round to three decimal places as needed.) Drownings Lyme Disease 30 (b) Determine the linear correlation coefficient between Lyme disease and drowning deaths. The linear correlation coefficient between Lyme disease and drowning deaths is r = 0.958. (Round to three decimal places as needed.) O C. associated because ris 20+ Drownings | Lyme Disease 30 Q and the absolute value of the correlation coefficient, OD. , is 20- 0- (c) Does a linear relation exist between the number of reported cases of Lyme disease and the number of drowning deaths? Do you believe that an increase of Lyme disease causes an increase in drowning deaths? What is a likely lurking variable between cases of Lyme disease and drowning deaths? 0 Drownings T Lyme Disease than the critical value, .
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