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A company that produces a particular machine component has 3 factories, one each in Buffalo, Detroit, and Pittsburgh. 27% of the components produced come from the Buffalo factory, 39% of the components come from the Detroit factory, and 34% of the components come from the Pittsburgh factory. It is known that 1.7% of the components from the Buffalo factory, 2.8% of the components from the Detroit factory, and 1.4% of the components from the Pittsburgh factory are defective. Given that a component is selected at random and is found to be defective, what is the probability that the component was made in Buffalo?
In November 2009, 65% (0.65) of Americans favored the death penalty for a person convicted of murder. In November 2010, 1025 adult Americans were asked by the Gallup organization,
A purchasing agent for a national chain of seafood restaurants wants to estimate the mean weight of shrimp in a large catch. How many shrimp should be sampled from the catch to be 95% confident that the sample mean will be off from the actual mean we..
Create a graph with the trendline displayed for each of the three different regressions. What are the least squares regression line equations for each of the three different regressions?
At the .01 significance level can we conclude the mean age is more than 8.4 years for the cars of university students? State the null hypothesis and the alternate hypothesis.
Drug sniffing dogs must be 95% accurate. A new dog is being tested and is right in 46 of 50 trials. Find a 95% confidence interval for the proportion of times the dog will be correct.
Pattern that most accurately represents mean, median and mode is?
an economist wants to know whether these two variables the help wanted index and the unemployment rate among insured
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
three students scheduled interviews for summer employment at the brook wood institute .in each case the interview
What is the appropriate t-test to conduct and should the null hypothesis be rejected
question in the u.s. it is estimated that an average person makes 4 visits a year to doctors offices.a what is the mean
authors of paper describe a data packet switch that uses the statistical behavior of packet arrivals to reduce
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