In: Statistics and Probability
Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of 20 people who used the programs provided the following data.
| Program | ||
|---|---|---|
| A | B | C | 
| 510 | 450 | 600 | 
| 400 | 510 | 630 | 
| 460 | 400 | 590 | 
| 530 | 420 | 460 | 
| 460 | 490 | 560 | 
| 620 | 380 | 640 | 
| 550 | 580 | |
Use the Kruskal-Wallis test to determine whether there is a significant difference among the three test preparation programs. Use α = 0.05.
Find the value of the test statistic. (Round your answer to two decimal places.)
Find the p-value. (Round your answer to three decimal places.)