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Explain what it means for two events to be mutually exclusive. Give an example of two mutually exclusive events and two non-mutually exclusive events.
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.
At the time she was hired as a server, beth was told, "you can average more than $20 a day in tips." Over the first 35 days she was employed at the resturant, the mean daily amount of her tips was $24.85, with a standard deviation of $3.24.
an accounting firm is planning for the next tax preparation season. from last years returns the firm collects a
The researcher will then compare the scores for the 2 treatments. If there is a difference between the 2 groups of scores, briefly explain how the difference may have been caused by the treatment.
evaluate completely the following statement the issue is not whether there is variation but whether the variation is
Consider babies born in the "normal" range of 37 - 43 weeks gestational age. What is the probability that the birth weight of a randomly selected baby of this type:
Using a random sample of 100 newly-packed Chococake, it is found that the mean shelf life is 154 hours. Can the cake house manager conclude that the new packaging technique is efficient at 0.01 significance level?
acrylic bone cement is sometimes used in hip and knee replacements to fix an artificial joint in place. the force
Create a 90% confidence interval for the true average number of unoccupied seats per flight. interpret this interval in the context of the problem.
Identify the regression equation and make the prediction. Show your procedure, or explain how you reached your answer. Costs of Television: Find the best predicted quality score of a Hitachi television with a price of $1900. Is the predicted qualit..
A representative of the environmental protection agency (EPA) wants to select samples from 10 landfills. The director has 15 landfills from which she can collect samples.How many different samples are possible?
suppose that in bags of christmas mampms half of the mampms are supposed to be red and the other half green. in a bag
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