In a study of green-marble preference and residence, Chef Owen surveyed a simple random sample of 600 people, and collected data on where they live (Phoenix, Flagstaff, Anchorage, Dallas or Austin) and whether or not they prefer red marbles.

Putting his data in a 5x2 contingency table, he conducted a test of independence (at the 5% significance level) to see whether red-marble preference is independent of neighbourhood, and calculated the test statistic2 8.32.

Based on this, Chef should. . .

a). . . reject the null-hypothesis that green-marble preference is dependent on neighborhood.

b). . . fail to reject the null-hypothesis that green-marble preference is dependent on neighborhood.

c). . . fail to reject the null-hypothesis that green-marble preference is independent of neighborhood.

d). . . reject the null-hypothesis that green-marble preference is independent of neighborhood.