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A hospital obtains 40% of its flu vaccine from company A, 50% from company B and 10% from company C. From past experience its known that 2% of the vials from A are ineffective, 1% from B are ineffective and 4 % from C are ineffective. The hospital tests five vials from each shipment. If at least one of the five is ineffective, find the conditional probability pf that shipment's having come from C.
A market researcher is interested in knowing the type of training that works best for DVD users. Thirty consumers are randomly selected from a population of known DVD owners (i.e., users).
What is the minimum sample size required to assure that your sample proportion "p" will be within the required margin of error around the population proportion "p". Use the traditional methods for testing hypotheses and show the results of all ste..
What is the purpose of a survey? What are three examples of a survey and what potential purpose could each be used for? How can one work to ensure the participants of a survey will have their responses kept private?
Which of the following Venn diagrams has shaded the event that the contractor wins exactly one of the contracts and evaluate the mean time to complete the entire homework assignment
Find the mean ______________ and the standard deviation _____________
Porphyrin is a pigment in blood protoplasm and other body fluids that is significant in body energy and storage. Let x be a random variable that represents the number of milligrams of porphyrin per deciliter of blood.
The following ANOVA summary data are the result of a regression with sales per year (dependent variable) as a function of promotion expenditures per year (independent variable) for a toy company.
Would Kruskal-Wallis be the suitable statistical procedure to test this Research Question (RQ)? Describe your answer. When would you use Chi-Square test rather than One-Way Anova?
What is the possible uses of regression and correlation analysis in doctoral-level research? Would I be able to use these techniques in my dissertation, or any application in other areas?
Does there seem to be any difference in the effect of the antibiotics on clearance of otitis media? Express your results in terms of relative risk (RR). Consider separate analyses for unilateral and bilateral cases. Also consider an analysis combi..
In the history class the mean score was 76 with standard deviation 3.
Develop a mathematical programming model and solve. Discuss your results [total profits, total costs, etc].
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