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Is public transportation use the same for all New York boroughs? A random sample of New York City commuters was obtained and each was classified by resident borough and the type of transportation used to get to work. The resulting frequencies are given in the following two-way table.
Is there any evidence to suggest that borough residence and type of transportation are dependent? Use a = 0.05.
Estimate the p-value for your t-score and is the difference of means statistically different from zero?
What is a Wilcoxon-Whitney Test and when is it used? I am not sure when to use the Wilcoxon-Whitney Test and what it is testing.
(a) Find the average rate at which customers enter the station. (b) Find the average time that a customer spends in the station per visit.
Prepare a control matrix, including explanations of how each recommended existing control plan helps to accomplish-or would accomplish in the case of missing plans-each related control goal.
What is the effective annual rate of an investment that pays 6% for 5 years, compounded semiannually
a person leaves for work between 8 am and 8.30 am and takes between 40 and 50 minutes to get there. let the random
Construct a 99 percent confidence interval for the true mean diameter of a nickel. (c) Discuss any assumptions that are needed. (d) What sample size would ensure an error of ± 0.0005 inches with 99 percent confidence?
A random sample of 221 homes in Kentucky found that 115 were heated by natural gas. Does the evidence support the claim for Kentucky at the a = 0.05 level.
Do the above values appear to be in statistical control, justify your answer?
Use Bayes' rule to find conditional probability which Julianne is carrier, given that she and Jason have one child who doesn't have CF.
it is estimated that 10 percent of those taking the quantitative methods portion of the cpa examination fail that
describe a fictional two-group experiment that could be tested with an independent t-test but violates the assumption
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