3. The chance of contacting strep throat when coming into contact with an infected person is estimated as 0.15.Suppose the four children of a family come into contact with an infected person. Design and conduct a simulationto answer the following questions. Begin on Line 115 and conduct 10 trials.a) Estimate the average number of children who will get the disease.b) What is the probability of two of the children getting the disease?c) What is the probability of at least two of the children getting the disease?

Given: n = 10 p = 0.15 q = 1-0.15 q = 0.85 Formula Used: Binomial distribution: If a random variable…

Answered: 3. The chance of contacting strep…

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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Suppose X is an outcome in throwing a fair die. Find the mean and variance
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A researcher would like to determine whether an over-the-counter herbal nasal spray has an effect on mental alertness for infants. A sample of n = 18 infants is obtained, and each baby is given a standard dose of the spray one hour before being tested for mental alertness. For the general population of infants, scores on a mental alertness screening test are normally distributed with μ = 60. The infants in the sample had an average score of M = 54 and an S = 8. Can the researcher conclude that scores on the screening test are significantly different after administering the spray? Use a two-tailed test with α = .05. Be sure to state your null hypothesis, a decision about that null hypothesis, and a conclusion explaining your results with an APA format statement. Calculate Cohen’s d if necessary.
The histogram below gives the length of service of members of the Department of English at a particular university. The classes, in years of service, are 0−−4.9, 5−−9.9, etc., and the vertical axis represents the number of faculty. 1) What percent of the department faculty have less than 15 years of service? 2) If a member of the department is chosen at random to serve on a university committee, what is the probability (in decimal form) that the chosen representitive will have between 5 and 45 years of service? 3) What is the probability the representative above will have less than 20 years of service given that the person has less than 25 years of service?
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