Module 8 Statistics assignment

rachrv
Home>Homework Answsers>Mathematics homework help

 

Just answer question

 

Module 8 Homework Assignment

Managers rate employees according to job performance and attitude. The results for several

randomly selected employees are given below.

 

Performance      59   63   65   69   58   77   76   69   70   64

Attitude               72   67   78   82   75   87   92   83   87   78

 

1.  Construct and show a scatterplot of the data.  Does it show a positive correlation, negative correlation or no correlation?

Solution:

 

 

Instructor Comments:

 

2. Find the value of the linear correlation coefficient r.

Solution:

 

 

Instructor Comments:

 

3.  Find the critical values for a = 0.05.

Solution:

 

 

Instructor Comments:

 

4.  Based on the critical value and the correlation coefficient, is there sufficient evidence to conclude that there is linear correlation between job performance and attitude?  Explain why or why not.

Solution:

 

 

Instructor Comments:

                             

5.  Find the value of r2 and explain its meaning.  

Solution:

 

 

Instructor Comments:

 

 

    • 10 years ago
    • 10
    Report issue
    Answer(2)
    Jambi
    4.6 (98)
    5.0 (2)
    Chat

    Purchase the answer to view it

    NOT RATED
    • week_8_assignment.docx
    Math spoiltgenius
    5.0 (107)
    5.0 (83)
    Chat

    Purchase the answer to view it

    NOT RATED
    • stat1.docx
    Bids(0)