listed below are the overhead widths (in cm) of seals measured from photographs

Question

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 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?

es alo u luau wiuuns (in cm) o Seals measured from photographs of r using 0.01. Is there sufficient evidence to conclude that there is a line overhead Width 7.1 7.5 9.8 9.3 8.7 8.4 Weight 112 193 249 198 201 191 here to view a table of critical values for the correlation coefficient struct a scatterplot. Choose the correct below qraph

Explanation / Answer

Let,

x = Overhead width

y = Weight

x

y

7.1

112

7.5

193

9.8

249

9.3

198

8.7

201

8.4

191

Construct a scatterplot:

Answer: Diagram (B)

We can use excel to get the value of correlation. The below is the excel function:

=correl(data set)

Answer: The linear correlation coefficient is 0.840

Here degree of freedom is 6 – 2 = 4. At 1% level of significance from critical r table we get the critical r as 0.917.

Answer: The critical values are r 0.917

Answer: Because the absolute value of the linear correlation coefficient is less than the positive...

x

y

7.1

112

7.5

193

9.8

249

9.3

198

8.7

201

8.4

191

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