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Two binomial population proportions are suspected to be approximately 0.3, but they are unknown precisely. Using these as initial estimates, it is desired to conduct a study to determine the difference between these two population proportions. Obtain a general expression for the sample size n1 = n2 = n required in order to determine the difference p1 - p2 to within ±ξ with (1 - α) × 100% con?dence. In the speci?c case where ξ = 0.02 and α = 0.05 what is n?
3 of 20 students are selected to a committee. they will be president vice president and secretary. how many different
q1. for the following questions would the following be considered significant if its probability is less than or equal
Given the following information, compute the PVP using Bayes' Theorem. Prevalence = 20% Sensitivity = 50% Specificity = 75%
at a local university when scheduling classes the probability that there is no evening classes available on a certain
Establish the objective function and the inequations of this system. Use x1; x2; x3 instead of P1; P2; P3. Create the system of equations and out of it a table for usage of the Simplex Method (just the table no evaluation!)
organizations interested in making sure that accused persons have a trial of their peers often compare the distribution
What is the probability of a false negative test (the probability that a person having muscular distrophy tests negative)?
A sample of the length of time it took 42 persons to assemble the unit was organized into the following frequency distribution. What is the standard deviation (in minutes)?
The university police department must write, on average, five tickets per day to keep department revenues at budgeted levels. Suppose the number of tickets written per day follows Poisson distribution with a mean of 9 tickets per day.
What is the probability that a random sample of 49 different one-hour shopping periods will yield a sample mean between 441 and 446 shoppers and interpret your answer in words.
You want to show an increase in buying and selling of single-family homes this year when compared with last year's rate.
1. according to a survey 63 of murders committed last year were cleared by arrest or exceptional means. fifty murders
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