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Anita reports 48% of all customers order fast food to go. If this proportion is correct what it the probability that in a random sample of 5 at Anita's, exactly 2 orders food to go?
In a certain city, there are 100,000 persons age 18 to 24. A simple random sample of 500 such persons is drawn, of whom 198 turn out to be currently enrolled in college.
An urn always contains 2 balls. Ball colors are red and blue. At each stage a ball is randomly chosen and then replaced by a new ball, which with probability 0.8 is the same color, and with probability 0.2 is the opposite color, as the ball it rep..
data are collected in a clinical trial evaluating a new compound designed to improve wound healing in trauma patients.
Event A occurs with probability 0.2. Event B occurs with probability 0.3. Event C occurs with probability 0.4. If A, B, and C are disjoint, then
pretests posttests and threats to internal validity.answer the question either by writing the design name or by
Now that you are an adult, you decide to test one of the truisms passed along by your mother: "Cheaters never win in the end." You randomly assign a group of 20 children to either cheat or to play fair on a scavenger hunt.
An investor owns three common stocks. Each stock, independent of the other, has equally likely chances of: List the possible outcomes of this experiment. Estimate the probability at least two of the stocks increase in value.
Sometimes newspapers sample opinions of the local population by printing a "ballot" and asking readers to mark it and mail it in. Evaluate this sampling technique.
What is the parametric counterpart to the Wilcoxon rank sum test? Compare the assumptions involved in using the respective tests.
question a sample of 12 funeral homes in ohio found these costs for cremation320152190285570995585820195160590150find
Items that fail will be replaced immediately. Determine the plan using Handbook H-108, assuming that the time to failure is exponential.
Find the value z* that satisfies each of the following probabilities for a standard normal random variable Z:- P(Z ≤ z*) = .025.
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