5) Suppose 40% of all patients admitted to an emergency room are heartrelated patients. In a sample of 1000 patients, find the probabilityapproximately that at least 500 patients are heart related patients.Let X = # of patients (out of 1000) admitted due to heart relateddiseaseThen X ~ binomial (1000, 0.40)Based on normal approximation X~ N(np, √np(1-p))Mean np = 1000 * 0.40 = 400St.Dev. √np(1-p) = √1000 * 0.0.40 * 60 = 15.49Thus, X N(400, 15.49)P(X ≥ 500) ≈ P(X≥ 499.5) - continuity correction= normcdf(low-499.5, high-1000, mean-400, sig-15.49)= 6.69 * 10-11 0

5) Suppose 40% of all patients admitted to an emergency room are heart related patients. In a sample of 1000 patients, find the probability that at least 500 patients are heart related patients. approximately

5) Suppose 40% of all patients admitted to an emergency room are heart related patients. In a sample of 1000 patients, find the probability that at least 500 patients are heart related patients. approximately

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

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?
A manufacturer of aspirin claims that the proportion of headache sufferers who get relief with just two aspirins is 63.1%. What is the probability that in a random sample of 490 headache sufferers, less than 59.3% obtain relief? Probability =
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?
According to a study 20% of corporate officers are women. Suppose that you select a random sample of 250 corporate officers. What is the probability that in the sample, less than 15% of corporate officers will be women?
A survey showed that 76% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 14 adults are randomly selected, find the probability that at least 13 of them need correction for their eyesight. Is 13 a significantly high number of adults requiring eyesight correction?
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.
The probability that a randomly selected 40- year old female will live to be 41 - year old is 0.988 according to study. What is the probability that two randomly selected 40-year-old women will live to be 41 years old?
Suppose that about 55% of the people who are murdered actually knew the murderer. Suppose that a detective file in Boston has 51 current unsolved murders. What is the probability that fewer than 21 victims knew their murderer?
A survey showed that 71% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 8 adults are randomly selected, find the probability that at least 7 of them need correction for their eyesight. Is 7 a significantly high number of adults requiring eyesight correction?
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?