Four different assembly processes were under consideration

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  1. Four different assembly processes were under consideration. Thirty-two workers were

randomly assigned to the four processes, four per processes. The numbers of correctly assembled units in an four-hour work shift were recorded:


Process 1

Process 2

Process 3

Process 4

30

25

30

27

29

30

26

28

24

31

32

30

35

33

27

29

 

a. What is the value of SSF

b. What is the value of SST

c. What is the value of SSE

  1. With the = 0.01, is there a significant difference between the four processes?


4. The following results were obtained as part of a simple linear correlation analysis:

Y = 97.98 – 4.33x regression sum of squares = 2680. 27. Error sum of squares =

125.40. Total sum of squares = 2805.67. The sample correlation coefficient is :

a. -0.9774 b. 0.9553

c. 0.2114 d. 0.0447

 

 


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