Math 227 - Statistics » Spring 2023 » 19P Scatterplots, Correlation, and Regression
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Math 227 - Statistics ] course for $25 USD.
Existing Quiz Clients Login here
Question #1
Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below. Performance (x) / 6 / 1 / 2 / 8 / 4 / 4 / 7 / 2 / 5 / 7 Attitude (y) / 6 / 10 / 10 / 9 / 4 / 9 / 4 / 4 / 8 / 8 Use the given data to find the linear correlation coefficient. (Round your answer to nearest thousandth.)
A.
-0.15
B.
-0.19
C.
-0.17
D.
-0.13
Question #2
Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below. Performance (x) / 6 / 6 / 4 / 3 / 6 / 3 / 9 / 7 / 3 / 2 Attitude (y) / 2 / 2 / 10 / 7 / 10 / 8 / 6 / 3 / 7 / 3 Use the given data to find the test statistic for testing linear correlation. (Round your answer to nearest thousandth.)
A.
-0.669
B.
-0.613
C.
-0.699
D.
-0.609
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Math 227 - Statistics ] course for $25 USD.
Existing Quiz Clients Login here