Answer Happy

You suspect that either one, or both of your competitors have infringed a product for which you hold a patent. You take samples from each of your competitors "B" and "C" and compare them to a sample of your product "A" using a Kruskal-Wallis est at 95%. Your null hypothesis is that all three samples come from the same population. A B C 36 49 71 48 33 31 5 60 140 67 2 59 53 55 42 The Test Stat "H" and crital values are closest to Select one: a. Test Stat = 6.44 Critical Value = 5.991 Cannot Reject b. Test Stat 1.22 c. Test Stat 1.22 d. Test Stat = 6.44 Critival Value = 7.738 Cannot Reject Critical Value = 5.991 Cannot Reject Critical Value = 7.378 Cannot Reject

In an experiment to test the toxicity of three chemicals "A", "B" and "C", volunteers have each chemical applied to their skin. The degree of irritation is scored from 1 to 10 (10 being the highest). Use a Friedman test at the 99% level of confidence that each chemical comes from the same (but undefined) distribution. B A 6 9 6 C 5 3 8 4 9 3 8 6 8 9 76 675 657 The Test Statistic "F" and Critical Value are closest to 5 7 5 Select one: a. Test Stat 3.34 = b. Test Stat 1.75 = c. Test Stat 1.75 d. Test Stat 3.34 = Critical Value = 10.597 Cannot Reject Critical Value = 10.597 Cannot Reject Critival Value = 9.210 Cannot Reject Critical Value = 9.210 Cannot Reject