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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:  

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