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Can you help me solve 2 questions below? Thank you!



Use the information below for questions 19-20, Approximately 20% of the US college students
have cars. Professor Mike believes that his college has a higher car ownership rate, He likes to
justify his claim using a survey of randomly selected students from his college. He also likes to
utilize normal distribution and its properties in supporting his statement statistically.
Q19. What is the minimum number of students that Mike should survey? (1.5 points)
Q20. Suppose Mike surveyed 120 students and found that 56 of the participants own cars, If the
true proportion of the car owners in Mike's college was indeed 20%%, what is the probability of
observing 56 or more car owners in a survey of 120 students?
(1.5 points)

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