Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the critical values of r using alpha

αequals

=0.01

0.01. Is there sufficient evidence to conclude that there is a linear correlation between overhead widths of seals from photographs and the weights of the seals?

Overhead Width

7.0

7.0

7.7

7.7

9.8

9.8

9.3

9.3

8.7

8.7

8.4

8.4

Weight

107

107

186

186

248

248

199

199

201

201

195

195

Click here to view a table of critical values for the correlation coefficient.LOADING...

Construct a scatterplot. Choose the correct graph below.

**A.**

7

10

100

300

width (cm)

weight (kg)

A scatterplot has a horizontal scale labeled "width in centimeters" from 7 to 10 in increments of 0.5 and a vertical scale labeled "weight in kilograms" from 100 to 300 in increments of 20. Six points are plotted with approximate coordinates as follows: (7, 295); (7.7, 215); (8.4, 205); (8.7, 200); (9.3, 200); (9.8, 150).

**B.**

7

10

100

300

width (cm)

weight (kg)

A scatterplot has a horizontal scale labeled "width in centimeters" from 7 to 10 in increments of 0.5 and a vertical scale labeled "weight in kilograms" from 100 to 300 in increments of 20. Six points are plotted with approximate coordinates as follows: (7, 105); (7.7, 185); (8.4, 195); (8.7, 200); (9.3, 200); (9.8, 250).

**C.**

7

10

100

300

width (cm)

weight (kg)

A scatterplot has a horizontal scale labeled "width in centimeters" from 7 to 10 in increments of 0.5 and a vertical scale labeled "weight in kilograms" from 100 to 300 in increments of 20. Six points are plotted with approximate coordinates as follows: (7.2, 150); (7.7, 200); (8.3, 200); (8.6, 205); (9.3, 215); (10, 295).

**D.**

7

10

100

300

width (cm)

weight (kg)

A scatterplot has a horizontal scale labeled "width in centimeters" from 7 to 10 in increments of 0.5 and a vertical scale labeled "weight in kilograms" from 100 to 300 in increments of 20. Six points are plotted with approximate coordinates as follows: (7.2, 250); (7.7, 200); (8.3, 200); (8.6, 195); (9.3, 185); (10, 105).

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