Researchers at George Washington University and the National Institutes of Health claim that approximately 75% of people believe tranquilizers work very well to make a person more calm and relaxed. Of the next 80 people interviewed, what is the probability that (a) at least 50 are of this opinion? (b) at most 56 are of this opinion?

Q: Researchers at George Washington University and the National Institutes of Health claim thatapproximately 75% of people believe tranquilizers work very well to make a person more calmand relaxed. Of the next 80 people interviewed, what is the probability that (a) at least 50 are ofthis opinion (b) at most 56 are of this opinion Step By Step SolutionStep 1 of 3:Given:Given:Number of people interviewed:Probability of people believing tranquilizers will work:Mean:Standard deviation: