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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A professor knows that her statistics students' final exam scores have a mean of 79 and a standard deviation of 12.4. In his class, an "A" is any exam score of 90 or higher. This quarter she has 25 students in her class. What is the probability that 7 students or more will score an "A" on the final exam?
A racing car consumes a mean of 103 gallons of gas per race with a variance of 36. If 38 racing cars are randomly selected, what is the probability that the sample mean would be greater than 101.5 gallons? Round your answer to four decimal places.
The quality control manager at a computer manufacturing company believes that the mean life of a computer is eighty one months with avariance of sixty four. If he is correct, what is the probability that the mean of a sample of sixty computers would differ from the population mean by less than two point 94 months.
On Mary’s FACEBOOK page, there is a 42% chance that one of her friends will write on her wall. If she has 2400 “hits” on her page, can the probability that less than 1071 people write on her wall be modelled with a normal approximation? Explain/justify your answer.
Solve A) to D)
Assume that females have pulse rates that are normally distributed with a mean of u = 76.0 beats per minute a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 69 beats per min The probability is (Round to four decimal places as needed.) b. If 25 adult females are randomly selected, find the probability that they have pulse rates with a mean bet The probability is (Round to four decimal places as needed.) c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30? O A. Since the distribution is of sample means, not individuals, the distribution is a normal distribution fo OB. Since the distribution is of individuals, not sample means, the distribution is a normal distribution fo OC. Since the mean pulse rate exceeds 30, the distribution of sample means is a normal distribution fo O D. Since the original population has a normal distribution, the distribution of sample means is a norma
The mean value of smokers in Peshawar is 10.36 per week with the probability of 0.56.Compute that at what percent of 10 persons will be a smoker in six months. Also, compute the probability there will be at most 3 smokers.
A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. Values range from 300 to 850, with a credit score over 700 considered to be a quality credit risk. According to a survey, the mean credit score is 708.2. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 39 high-income individuals and found the sample mean credit score to be 725.5 with a standard deviation of 80.6. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the a-0.05 level of significance. State the null and alternative hypotheses. Mỹ l H₂: (Type integers or decimals. Do not round)
The 2012 National Survey on Drug Use and Health estimated that 25% of canadians agd 12 or over reported binge drinking in the past month. Find the odds of binge drinking
Two devices are used to measure the length of beam. If the true length of the beam is L, the measurement error made by one device, E, , is normally distributed with mean 0 and standard deviation 0.006L, and the measurement error made by the other device, E, , is normally distributed with mean 0 and standard deviation 0.004L. The two measurement errors are independent of each other. What is the probability that the average value of the two measurements, (E, + E,)/2, is within 0.5% of L? Note that this problem can be done using the attached table of the cdf of the standard normal random variable.
Please only answer c,d
Suppose that you make a large number of independent observations of a random variable and then construct a table giving the possible values of the random variable and the proportion of times each value occurs. What will this table resemble?

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