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In 2007, unemployment rates in the 50 U.S. states were reported as follows. These data are also provided in the file XR02058. Source: Bureau of the Census, Statistical Abstract of the United States 2009, p. 373.
under $200,000
268
22
$200,000-under $300,000
227
54
$300,000-under $500,000
186
64
$500,000 or over
94
41
Convert these data to relative frequency distributions, one for the total United States, the other for the western states. Do the results appear to suggest any differences between total U.S. prices and those in the western states?
A IRS auditor randomly selects 3 tax returns from 57 returns of which 6 contains errors. What is the probability that she selects none of those containing errors?
among 500 marriage license applications chosen at random in a given year there were 48 in which the woman was atleast
how would you interpret the findings of a correlation study that reported a linear correlation coefficient of 0.3?a.
Null Hypothesis (Ho): There is no significant difference between the population average scores of mathematics among these three groups with different teaching method.
would you favor or oppose providing a path to citizenship for illegal immigrants in the U.S if they met certain requirement including a waiting period, paying fines and back taxes, passing criminal background checks and learning English? What is the ..
Linear programming problems. Computethe following linear programming problem. Among which of the following points (X,Y) is feasible.
Provide a brief description of the main features of these data from the scatter plot and Describe why you would use performance as the predictor variable and performane related pay as the dependent variable in such a model.
The following data shows the service ratings for eight ramdomly selected small ships, eight randomly selected large ships. All ships are rated on a 100-point scale, with higher valuse indicated better service (traveler Feb 2003)
What are the assumptions of regression analysis and how do you evaluate them?
For the constant sound group: 1, 10, 1, 10, 1, 9, 7, 3. And for the no sound group: 4, 3, 6, 4, 5, 8, 4, 9. A. Assume that the standard deviations are equal and find the test statistic for the test that the between mu1 and mu2 is zero.
For all questions, clearly explain/show your answers. For the Analysis section, justify your answers with the appropriate graphs, statistics, equations, etc.
What type of error would result in that case? Respond to at least two of your classmate's postings.
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