The department Psychology to purchase one of five machines for experimental laboratory A, B, C, E. In an experiment designed to decide whether there is a difference in performance of the machines, five experienced laboratory technicians each work on the machines for equal times. Table below shows the number of units for each machine performance. 68 72 75 63 72 42 53 48 52 55 60 82 65 77 75 48 61 57 64 50 64 65 70 68 53 (a) Test the hypothesis that there is no difference among the machines at the 0.01 and 0.05. (b) Interpret the results in words. ABCDE

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The department Psychology to purchase one of five machines for experimental
laboratory A, B, C, E. In an experiment designed to decide whether there is a
difference in performance of the machines, five experienced laboratory technicians
each work on the machines for equal times. Table below shows the number of units
for each machine performance.
72
52
82
61
65
75
63
65
57
70
68
42
A
B
53
48
72
55
75
50
53
60
77
48
64
64
68
(a) Test the hypothesis that there is no difference among the machines at the
0.01 and 0.05.
(b) Interpret the results in words.
O山
Transcribed Image Text:The department Psychology to purchase one of five machines for experimental laboratory A, B, C, E. In an experiment designed to decide whether there is a difference in performance of the machines, five experienced laboratory technicians each work on the machines for equal times. Table below shows the number of units for each machine performance. 72 52 82 61 65 75 63 65 57 70 68 42 A B 53 48 72 55 75 50 53 60 77 48 64 64 68 (a) Test the hypothesis that there is no difference among the machines at the 0.01 and 0.05. (b) Interpret the results in words. O山
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