MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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  • Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below.

 59

 63

 65

 69

 58

 77

 76

 69

 70

 64

72

67

78

82

75

87

92

83

87

78

 Performance Attitude

What function do you use to see the scatterplot on the calculator. #8 LinReg(a +bx)___________________________ Scatterplot from the calculator:

Let α=0.05

What calculator function do you use to find r and the regression equation? ________________________ r = _______________          critical value from table: ________________

Is there a strong enough linear correlation to use the regression equation given? ___________

Explain why.  __________________________________________

What is the regression equation?  (Round to 3 decimal places)

^

y= ________________________________________________

Predict the Attitude score for an employee with a performance score of 79.  __________

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