The following values are three (3) different weeks' earning s of production workers employed by a manufacturing company (5 days in a week):

Week	Adani	Bacani	Cadani	Dacani	Egani
Week 1	2560	2900	4160	2400	3200
Week 2	3000	3500	3700	5000	3600
Week 3	2800	3400	3600	3000	3200

Formulate your null and alternative hypothesis. What statistical treatment will be used? Use significance level at .05 whether the difference between average earnings of these workers over the given period of time may be attributed to the workers attitude of doing their task. Find the computed and the critical value. Interpret your answer by making a decision.