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Use the Minitab Display to Test the Indicated Claim Assume That the Number of Items Produced Is Not Affected

Question 121

Essay

Use the Minitab display to test the indicated claim. A manager records the production output of_
three employees who each work on three different machines for three different days. The
sample results are given below and the Minitab results follow.  Employee  A  B  C  Machine  I 23,27,2930,27,2518,20,22 II 25,26,2424,29,2619,16,14 III 28,25,2625,27,2315,11,17 ANALYSIS OF VARIANCE ITEMS  SOURCE  DF  SS  MS  MACHINE 234.6717.33 EMPLOYEE 2504.67252.33 INTERACTION 426.676.67 ERROR 1898.005.44 TOTAL 26664.00\begin{array}{l}\begin{array} { c c c c c } & { \text { Employee } } \\& & \text { A } & \text { B } & \text { C } \\\text { Machine } & \text { I } & 23,27,29 & 30,27,25 & 18,20,22 \\& \text { II } & 25,26,24 & 24,29,26 & 19,16,14 \\& \text { III } & 28,25,26 & 25,27,23 & 15,11,17\end{array}\\\\\text { ANALYSIS OF VARIANCE ITEMS }\\\\\begin{array} { l r r r } \text { SOURCE } & \text { DF } & { \text { SS } } & { \text { MS } } \\\text { MACHINE } & 2 & 34.67 & 17.33 \\\text { EMPLOYEE } & 2 & 504.67 & 252.33 \\\text { INTERACTION } & 4 & 26.67 & 6.67 \\\text { ERROR } & 18 & 98.00 & 5.44 \\\text { TOTAL } & 26 & 664.00 &\end{array}\end{array} Assume that the number of items produced is not affected by an interaction between
employee and machine. Using a 0.05 significance level, test the claim that the machine has no
effect on the number of items produced.

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H0 : There is no machine effect.
H₁ : Th...

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