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1. A 2016 Gallup survey asked a random sample of 1023 American adults if they drink alcoholic beverages and, if they do, which type they consume most often. The survey found that, among those who do drink alcohol, 43%favor beer, 32% favor wine, 20% favor liquor, and the remaining expressed no par-ticular preference.21 Use these sample proportions to assign approximate probability values for the corresponding events.
(a) Give the sample space S and the probability model for the random event "type of alcoholic beverage favored."
(b) Obtain the probability that a randomly select American adult who drinks alcohol does not favor beer.
(c) Obtain the probability that a randomly select American adult who drinks alcohol favors either beer or wine.
2. Suppose a rapid test has a probability of probability of about 0.004 of producing a false-positive (that is, of falsely indicating the disease is present). If a clinic tests 200 people who are free of the disease, what is the chance that at least one false-positive will occur?
Problem 1: A supplier shipped a lot of six parts to a company. The lot contained three defectiveparts. Suppose the customer decided to randomly select two parts and test them fordefects. How large a sample space is the customer potentially working..
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A biologist with the Department of Agriculture is studying the growth of artichokes. She knows that the number of artichokes produced by each plant follows a distribution which is approximately normal.
Twelve faculty members are available for assignment to these courses, and no faculty member can be assigned to more than one course. In how many ways can the chairperson assign faculty to these courses?
Describe the nonequivalent control group pretest-posttest design. Why is this a quasi-experimental design rather than a true experiment?
1. Assuming the binomial distribution applies with a sample size of n 15, find a. the probability of 5 or more successes if the probability of a success is 0.30 b. the probability of fewer than 4 successes if the probability of a success is 0.75
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The number of items rejected daily by the manufacturer because of defects for last 30 days are:
ACT scores are normally distributed with mean 18 and standard deviation 6. Assuming that both tests measure the same kind of ability, who has the higher score, and why?
How many commuters must be randomly selected to estimate the mean driving time of Chicago commuters? We want 98% confidence that the sample mean is within 2 minutes of the population mean.
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