The data in the table below presents the hourly quantity of production for three lines of production processes over the first 4 days in XYZ Company. Answer the questions based on the Excel Output given below.

Day process 1 Process 2 process 3

1 33 33 28

2 30 35 36

3 28 30 30

4 29 38 34

ANOVA: single factor

summary

Groups count Sum Average variance

Precess 1 4 120 30 4.6667

process 2 4 136 34 11.3333

process 3 4 128 32 13.3333

ANOVA

source of variation SS df MS F O value

Between groups 32 ? ? ?

within groups 88 ? ?

Total 120 11

Requirement

1. State the null and alternative hypothesis for single factor ANOVA.
2. State the decision rule ( = 0.05).
3. Calculate the test statistic.
4. Make a decision.