An advertiser runs a commercial on national television and wants to determine whether the proportion of people exposed to the commercial is equal throughout the country. A random sample of 100 people is selected at each of five locations, and the number of people in each location who have seen the commercial at least once during the week is recorded. The numbers are as follows: location A, 32 people; location B, 59 people; location C, 78 people; location D, 40 people; and location E, 10 people. Do you believe that the proportion of people exposed to the commercial is equal across the five locations?