To determine the actual side effects, pharmaceutical companies often conduct studies that compare the side effects of their drug versus the side effects of a placebo. One such study examined the side effects of a new cold remedy. A random sample of 250 people was given the cold remedy and another 250 were given a placebo that looked like the cold remedy. These responses were recorded as 1 = Headache, 2 = Drowsiness, 3 = Stomach upset, 4 = No side effect Do these data provide enough evidence to infer that the reported side effects differ between the cold remedy and the placebo?