Researchers at George Washington University and the National Institutes of Health claim that approximately 0.66 of people believe "tranquilizers work very well tomake a person more calm and relaxed". Of the next 87 people interviewed, what is the probability that at most 73 are of this opinion?Tunn in the canyas the mean, but show the z-score and the percentage in the solution, which is the final answer.

Obtain the probability that at most 73 are of this opinion. The probability that at most 73 are of…

Answered: Researchers at George Washington…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A survey of U.S. adults ages 18-29 found that 92% use the internet. You randomly select 100 adults ages 18-29 and ask them if they use the internet. The probability that at least 86 people say they use the internet is [ ].
13 percent of the patients in a study reported previous episodes of a stroke. Use 13 percent as the estimate of the prevalence of stroke within the population. If 70 subjects are chosen at random from the population, what is the probability that 10 percent of less would report an incidence of stroke?
Please solve the attached question, thanks
According to a study conducted by a statistical organization the proportion of Americans were satisfied with the way things are going in her lives .82 supposed random sample of 110 Americans is obtained. The probability that 77 or fewer Americans in the sample are satisfied is?
A group of 11 students' cholesterol levels are tested. Suppose the probability of a student having a healthy cholesterol level is 0.25. What is the probability that exactly seven out of 11 students have healthy cholesterol levels? (Round your answer to three decimal places.)
Of the last 60 people who went to the cash register at a department store, 13 had blond hair, 19 had black hair, 22 had brown hair, and 6 had red hair. Determine the empirical probability that the next person to come to the register has blond hair.
Suppose it has been determined that the probability is 0.8 that a rat injected with cancerous cells will live. If 95 rats are injected, how many would be expected to die?
A recent survey found that 60% of all adults wear sunglasses for driving. In a random sample of 10 adults, what is the probability that at least seven wear sunglasses?
Based on observation 85% of the population of adult males wash their hands in a public restroom. In a survey of 523 adult males, 518 reported they washed their hands when using a public restroom. Find the probability that among 523 randomly selected adult males 518 or more wash their hands in a public. restroom. Does it appear that all the people who claimed they washed their hands were telling the truth?
It is believed that 42% of American cell phone users have some version of an iPhone. If a random sample of 250 Americans with cell phones is taken, what is the probability the sample proportion of iPhone users will be greater than 45.5%?
According to a study done at Otago University Wellington, the probability a randomly selected individual will not cover their mouth when sneezing is 0.267. Suppose you sit on a bench in a mall and you observe 10 people as they sneeze. What is the probability that at least 3 of the people will not cover their mouth when they sneeze?

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