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Qusetion: In the context of Exercise, suppose that after five interruptions the process undergoes a major evaluation. Suppose also that inspections happen once every week. Let Y denote the number of weeks between successive major evaluations.
(a) The random variable Y is (choose one)
(i) binomial
(ii) hypergeometric
(iii) negative binomial
(iv) Poisson.
(b) Find the expected value and variance of Y.
Exercise: Average run length. To control the quality of a manufactured product, samples of the product are taken at specified inspection time periods and a quality characteristic is measured for each product. If the average measurement falls below a certain predetermined threshold, the process is declared out of control and is interrupted. The number of inspections between successive interruptions of the process is called a run length. The expected value of the random variable X = run length is called the average run length. Suppose the probability that an inspection will result in the process being interrupted is 0.01.
(a) The random variable X is (choose one)
(b) Give the sample space and PMF of X.
(c) What is the average run length?
Assuming that the heights of college women are normally distributed with mean 62 inches and standard deviation 3.5 inches, what percentage of women are between 58.5 inches and 72.5 inches?
Suppose we wanted to test the hypothesis that the employment status of these disadvantaged women.
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Describe how each of these analyses can be used to untangle the direction of the relationships among correlated variables.
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Develop a scatter plot of the data with the dependent variable, cost, on the vertical axis and the independent variable, weight, on the horizontal axis.
Read the articles about all four applications of simulation mentioned in Prob. 22.2-1. For each one, write a one-page summary of the application and the benefits it provided.
in 2000 the census bureau reported that the average life expectancy for a person in the u.s.a. had increased to 77
Give a 99% confidence interval for the mean number of years general managers of major-chain hotels have spent with their current company.
The methodology to conduct your research. This should make up the majority of your write up. This methodology needs to be stated clearly enough so someone with some level of research knowledge can take that and duplicate your research. Discuss ite..
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