Media periodically discuss the issue of heights of winning presidential candidates and heights of their main opponents. The accompanying table lists the heights​ (cm) from several recent presidential elections. Construct a​ scatterplot, find the value of the linear correlation coefficient​ r, and find the​ P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Should we expect that there would be a​ correlation? Use a significance level of α=0.01.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Media periodically discuss the issue of heights of winning presidential candidates and heights of their main opponents. The accompanying table lists the heights​ (cm) from several recent presidential elections.

Construct a​ scatterplot,

find the value of the linear correlation coefficient​ r,

and find the​ P-value of r.

Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables.

Should we expect that there would be a​ correlation? Use a significance level of

α=0.01.
 
 
Candidate Heights
183 D
President 178 186 188 174 177 186 186 177 178 179 192 185 181
Opponent 179 180 177 175 179 183 176 180 187 178 171 187 184 180
x
Transcribed Image Text:Candidate Heights 183 D President 178 186 188 174 177 186 186 177 178 179 192 185 181 Opponent 179 180 177 175 179 183 176 180 187 178 171 187 184 180 x
Construct a scatterplot. Choose the correct graph below.
O A.
€ 200-
160+
160
200
President Height (cm)
Q
Q
✔
The linear correlation coefficientis r=-
(Round to three decimal places as needed.)
B.
Opponent Height (cm)
200-
160+
200
President Height (cm)
160
O C.
Height (cm)
€200-
160+
*
160
200
President Height (cm)
O
O
O D.
Opponent Height (cm)
200-
160++
|||||
160
200
President Height (cm)
Transcribed Image Text:Construct a scatterplot. Choose the correct graph below. O A. € 200- 160+ 160 200 President Height (cm) Q Q ✔ The linear correlation coefficientis r=- (Round to three decimal places as needed.) B. Opponent Height (cm) 200- 160+ 200 President Height (cm) 160 O C. Height (cm) €200- 160+ * 160 200 President Height (cm) O O O D. Opponent Height (cm) 200- 160++ ||||| 160 200 President Height (cm)
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