Mathematics, 24.12.2021 04:20 bransom4206
The following are number of mistakes made on five occasions by word processor operators setting a technical report.
Operator 1 10 13 9 11 12
Operator 2 11 13 8 16 12
Operator 3 10 15 13 11 15
Operator 4 15 7 11 12 9
Required:
a. Perform an analysis of variance and decide at the 0.01 level of significance whether the differences among the four-sample means can be attributed to chance.
b. State the null and alternative hypothesis.
Answers: 3
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