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An overnight express company must include seven cities on its route. How many different routes are possible, assuming that it matters in which order the cities are included in the routing?
The response time for Denver police to respond to emergency calls is 8.4 minutes with a standard deviation 1.7 find the probability that the response time for a call between 5 and 10 minutes.
What is the chi-square goodness-of-fit test? What are the differences/similarities between this test and an independent t-test? How do you know when to use one analysis over the other? Show an example.
The manager of Sandy Corporation wants to determine whether or not the type of work schedule for her employees has any effect on their productivity. She has selected 15 production employees at random and then randomly assigned 5 employees to each ..
Probability using normal distribution.Sampling distributions. Given a normal distribution with μ = 50 and standard deviation σ = 9, if a sample of n = 100 is selected.
Find the probability that one or more of the five parolees will be repeat offenders. (Round your answer to three decimal places.)
Construct an appropriate control chart and comment on the process.
What signified to you on all of the problems that required a binomial distribution that you were to use a binomial distribution? Which problems required a binomial distribution?
sketch a histogram showing the population distribution - locate value of the population mean in your sketch and make an estimate of the standard deviation.
Is there evidence of difference in mean life of bulbs produced by the two kinds of machines. What is your conclusion?
Supposing a linear relationship, use the least squares method to find the regression coefficients b 0 and b 1 .
What is the relevance of Pearson's r? What does it tell you about the correlation between variables? What is one example of a null hypothesis and the research hypothesis that goes with it?
Is spine bone density is normally distributed in young women with a mean of 1.0 g/cm 2 and a standard deviation of .10 g/cm 2 , then how many young women out of 100 would you expect to have bone densities less than .85 g/cm 2 ?
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