In a poll conducted by the American Association of Retired Persons (AARP) of 1706 adults aged 45 and older, 72% agreed with the statement that “adults should be allowed to legally use marijuana for medical purposes if a physician recommends it.”

Source: D&C, December 19, 2004, “Most older Americans OK with medical pot”

Suppose a recent study of 200 adults in the Midwest showed 134 in favor of legally using marijuana for medical purposes. Do these results show a lower proportion for the Midwest with respect to the rest of the country? Use a 0.05 level of significance.

a. Solve using the p-value approach.

b. Solve using the classical approach.