persuasive essay
June 9, 2021
Managerial Economics
June 9, 2021

Module 8

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 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.  Is there sufficient
evidence to conclude that there is linear correlation between job performance
and attitude?  Show why or why not.

Solution:
 
 
 
Instructor Comments:

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

Solution:
 
 
 
Instructor Comments:

 

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