5.2. Point Estimate For each of the following situations, describe in words the parameter of interest and an appropriate point estimate. (a) A non-profit organization that trains assistance dogs wants to determine the proportion of dogs that successfully complete training to become an assistance dog. Data exists for 71 dogs. (b) What is the average number of Facebook friends for college women? We have data on the number of Facebook friends for 198 college women. (c) What proportion of adults in the United States can correctly identify the country of Afghanistan on a world map? We have data from a sample of 522 U.S. adults. (d) A cardiologist is interested in the average resting heart rate for men over age 80. He has heart rate data for 100 men over age 80