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 |
