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It took a contractor 1285 hours to manufacture their first unit of an item. If the contractor expects to achieve a 92% unit learning curve, how many hours would be required to manufacture units 52-100?
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The American Bar Association conducted a survey in 1986 showed that the average income of lawyers in 1986 was $ 120,000. An investigator took a sample of 64 lawyers in 1990, produced a median income of $ 140,000 with a standard deviation of $ 24.5..
suppose that x is a continuous random variable with a probability distribution fx 2x25 where x is between 0 and 5
Assume that a sample is drawn and z(α/2) = 1.65 and σ = 35. Answer the following questions. (A) If the Maximum Error of Estimate is 0.04 for this sample, what would be the sample size?
hamil sopa took a random sample of 60 invoices from his years records. the mean value of invoices in this sample was
Exercise on Inventory Pricing
A recent article in Vitality magazine reported that the mean amount of leisure time per week for American men is 40.0 hours. You believe this figure is too large and decide to conduct your own test.
question 1 assume that breast cancer affects .8 percent of the female population between 40 and 50 years of age. there
on completing this chapter you should be able to correctly answer the following questions.a. true or false it is
To utilize the weighted least squares approach we need to know, up to a multiplicative constant, the variance of Y as a function of x. We will now present an argument that Var(Y) should be proportional to x.
Record the type of research design used. True lab experiment, quasi-experiment, field experiment, or correlation design.
You have just started your own Airline. You have one plane for a route connecting Austin, Boise, and Chicago. One route is Austin-Boise-Chicago and a second route is Chicago-Boise-Austin. How many other routes are possible?
a group of statistics students decided to conduct a survey at their university to find the average mean amount of time
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