21. An article in Parenting magazine (Dec/J an 2004) reported that 60% of Americans surveyed say that they need a vacation after Visiting family for the holidays. Suppose the true proportion of all Americans who need a vacation after Visiting family for the holidays is indeed 60%. A simple random sample is taken of 150 Americans. What is the probability that less than 50% of the people in the sample say that they need a vacation after Visiting family for the holidays? A) 0.0062 B) 0.0072 C) 0.50 D) 0.60