27. A sample of 15 consumers provided the following product ratings for three different products. Five consumers were randomly assigned to test and rate each product. Use the Kruskal-Wallis test and ???? .05 to determine whether there is a significant difference among the ratings for the products. Three admission test preparation programs are being evaluated. The scores obtained by a sample of 20 people who used the programs provided the following data. Use the Kruskal- Wallis test to determine whether there is a significant difference among the three test preparation programs. Use ???? .05.

Program A B C

540 450 600

400 540 630

490 400 580

530 410 490

490 480 590

610 370 620

550 570