Dr Nick

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About Dr Nick

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Teaching Since: May 2017
Last Sign in: 245 Weeks Ago, 1 Day Ago
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Education

  • MBA (IT), PHD
    Kaplan University
    Apr-2009 - Mar-2014

Experience

  • Professor
    University of Santo Tomas
    Aug-2006 - Present

Category > Numerical analysis Posted 29 May 2017 My Price 14.00

Managers rate employees according to job performance and attitude.

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?

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

3.  Find the critical values for a = 0.05.

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.

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

Answers

Dr Nick
(3)
Status NEW Posted 29 May 2017 12:05 PM My Price 14.00

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