According to the sixth annual survey of employees of advertising agencies, carried out by the company...

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According to the sixth annual survey of employees of advertisingagencies, carried out by the company Altschuler, Melvoin &Glasser, these employees can wait another excellent year for theircompensation (Adveertising Age, December 1, 1997). To investigateif there is any difference in the annual compensation of artisticdirectors, suppose you select a random sample of 10 of them fromeach of four regions: West, South, North and Northeast, and whatyou want to do the research with 10% of error range.
West South North Northeast
60.9 50.8 49.5 65.9
45.9 39.6 42.3 58.6
62.1 44.2 35.5 49.3
66.6 40.0 49.1 52.9
68.0 53.9 56.7 48.5
65.0 45.4 41.4 52.9
49.4 61.1 51.3 52.4
62.3 42.3 49.4 48.1
62.6 38.4 42.1 13.2
57.2 38.3
55.7
45.9

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SolWe shall do ANOVA single factor to check whether differenceexistsIn excel install analysis toolpak and then go toDataData analysis ANIOVA See Answer

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West	South	North	Northeast
60.9	50.8	49.5	65.9
45.9	39.6	42.3	58.6
62.1	44.2	35.5	49.3
66.6	40.0	49.1	52.9
68.0	53.9	56.7	48.5
65.0	45.4	41.4	52.9
49.4	61.1	51.3	52.4
62.3	42.3	49.4	48.1
62.6	38.4	42.1	13.2
57.2	38.3	55.7	45.9