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12% of those eligible for jury duty are left handed. Among 250 people selected for jury duty, 25 (0r 10%) are lefties. find the probability of getting at most 25 lefties assuming that they are chosen with a process designed to yield a 12% rate of lefties.
A sample of n = 25 scores has a mean of M = 40 and a variance of s2 = 100. If this sample is being used to test a null hypothesis stating that m = 43, then what is the tstatistic for the sample?
If µ = µ1 = µ2 = µ3 = 60 and σ21 = σ22 = σ23 = 15, calculate the probability that the total time to finish the three repair tasks is at most 200 minutes.
Use the traditional method to test the given hypothesis. Assume that the population is normally distributed and that the sample has been randomly selected.
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
Take a random sample and perform a t-test against a population mean (no time series for any parts of this project.) Test a hypothesis about a population mean.
Formulate and solve linear program for determining how many copies should be assigned to each printing firm to minimize the total cost of obtaining 75,000 acceptable-quality reports?
There are many nonparametric tests that have been developed over the years. Explain what nonparametric tests are and why they were developed.
The chief of security for the Mall of the Dakotas was directed to study the problem of missing goods. He selected a sample of 100 boxes that had been tampered with and ascertained that for 60 of the boxes
Researchers have determined that patients who are smokers have 18% chance of contracting a serious illness. What is the probability that a given patient if the patient has a serious illness?
Let p represent the population proportion of all numbers in the corporate file that have a first nonzero digit of 1. Test the claim that p is less than 0.301 by using What is the P-value of the test statistic?
The math SAT scores for all women are normally distributed with a mean of 496 and a standard deviation of 105.
What is the probability of this actually happening?
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