4. You have been given following data set related to sales of Product X(units) in 3 different locations.

Location 1	45	27	39	42	28
Location 2	30	29	36	21	24
Location 3	19	25.5	27.6	31.5	34.6

You are required to answer following questions.

1. State the null and alternative hypothesis for single factor ANOVA to test for any significant difference in sales in three locations.

ANSWER:

1. State the decision rule at 5% significance level.

ANSWER:

1. Calculate the test statistic.

ANSWER:

1. Based on the calculated test statistics, decide whether there are any significant differences between the sales. (show the whole process)