According to a recent Gallup Poll, 75% of Americans report that they are better off financially today than they were a year ago. Let p be the proportion of people in a random sample of 230 Americans that say that they are better off financially today than they were a year ago. Determine the following probabilities. Round solutions to four decimal places, if necessary . Find the probability that in a random sample of 230 Americans, less than 81% say they are better off financially today than they were a year ago. P( hat p <0.81)=; = Box Find the probability that in a random sample of 230 Americans, between 71% and 75% say they are better off financially today than they were a year ago . P(0.71< hat p <0.75)=

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