Proportion of the variation in weight

User Generated

FghqragW

Mathematics

Description

answer attached question

Unformatted Attachment Preview

Critical Values for the Correlation Coefficient n 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 25 30 35 40 45 50 60 70 80 90 100 Note: To test H subscript 0: rho equals 0 against H subscript 1: rho not equal to 0, reject H subscript 0 if the absolute value of alpha = .05 alpha = .01 0.95 0.99 0.878 0.959 0.811 0.917 0.754 0.875 0.707 0.834 0.666 0.798 0.632 0.765 0.602 0.735 0.576 0.708 0.553 0.684 0.532 0.661 0.514 0.641 0.497 0.623 0.482 0.606 0.468 0.59 0.456 0.575 0.444 0.561 0.396 0.505 0.361 0.463 0.335 0.43 0.312 0.402 0.294 0.378 0.279 0.361 0.254 0.33 0.236 0.305 0.22 0.286 0.207 0.269 0.196 0.256 if the absolute value of r is greater than the critical value in the table. For a sample of eight bears, researchers measured the distances around the bears' chests and weighed the bears. Minitab was used to find that the value of the linear correlation coefficient is r=0.776. Using a = 0.05, determine if there is a linear correlation between chest size and weight. What proportion of the variation in weight can be explained by the linear relationship between weight and chest size? Click here to view a table of critical values for the correlation coefficient. a. Is there a linear correlation between chest size and weight? O A. No, because the absolute value of the test statistic exceeds the critical value of 0.707. B. Yes, because the absolute value of the test statistic exceeds the critical value of 0.707. O C. Yes, because the test statistic falls between the critical values of -0.707 and 0.707. OD. The answer cannot be determined from the given information. b. What proportion of the variation in weight can be explained by the linear relationship between weight and chest size? (Round to three decimal places as needed.)
Purchase answer to see full attachment
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Explanation & Answer

Here is my answer :)

Proportion of the variation in
weight
For a simple of eight, researchers measured the distances around the bears’ chests and weighed
the bears. M...


Anonymous
Just what I needed. Studypool is a lifesaver!

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4

Related Tags