Question

Question 3

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
Process 1	4	120	30	4.66667
Process 2	4	136	34	11.3333
Process 3	4	128	32	13.3333

  ANOVA       

Source of Variation	SS	df	MS	F	P value
Between Groups	32	?	?	?
Within Groups	88	?	?
Total	120	11

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

Answer 1