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The admissions staff asked graduates outside their immediate area and outside the state to help with recruiting. In addition, some money was spent on media advertising. To assess the effect of this campaign, the current year's requests for applications were classified as Large Metropolitan Area (565), Rest of State (410), and Out of State (216). An analysis of addresses over previous years showed Large Metropolitan Area, 51%; Rest of State, 40%; Out of State, 9%. What statistic should be used to analyze these data?
When using dummy variables in a regression equation to model a qualitative or categorical variable, the number of dummy variables should equal to
Is there evidence to reject the hypothesis that the apartments are equally distributed between 1-bedroom, 2-bedroom, and 3-bedroom apartments, at alpha = .05?
Construct a 95% confidence interval for the population mean service charge if a customer's account falls below the $1,500 minimum.
when 12 bolts are tested for hardness their indexes have a standard deviation of 41.7. test the claim that the standard
Use a 0.01 significance level to test the claim that flights scheduled one day in advance cost more than flights scheduled 30 days in advance.
Determine the covariance matrix for values of this process at time t=1,2,3,4. Determine its inverse(numerically) and write formula for pdf of corresponding random vector.
1. a new company came out with a new battery that promised that it would last for more than 8 hours with the standard
A researcher is estmating influence of treatment using sample selected from normally distributed population with mean of µ = 80 and standard deviation of σ = 20. Calculate power of test if researcher uses sample of n = 25 individuals.
Compute the mean of the sampling distribution? Compute the standard deviation of sampling distribution?
can someone please help me with finding these critical z scores.1. what is z critical for a positive one-tailed test
Consider a Poisson probability distribution with 2 as the average number of occurrences per time period. Write the appropriate Poisson probability function.
You are using a significance level of α = 0.05 to test a claim that p > 0.5. Your sample is a simple random sample of size n = 49. Calculate β for the test, assuming that the true population proportion is 0.7 and showing all work.
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