A Brooklyn College professor would like to determine whether their class' Statistics exam scores are affected by the setting of testing. This professor asks 7 of her students to take the exam outside on the grass, another 7 inside in the usual classroom, and a third group of 7 ata concert. Below are the results. Test the hypothesis that exam setting affects performance using an alpha level of 0.05.

Grass 46071 Concert 80 99 20 98 85 12 94 83 25 98 56 45 65 75 60 79 62 41 93 65 20 72 90 24