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Question: Unhappy HMO patients. How likely are patients who file complaints with a health maintenance organization (HMO) to leave the HMO? In one year, 639 of the more than 400,000 members of a large New England HMO filed complaints. Fifty-four of the complainers left the HMO voluntarily. (That is, they were not forced to leave by a move or a job change.) Consider this year's complainers as an SRS of all patients who will complain in the future. Give a 90% confidence interval for the proportion of complainers who voluntarily leave the HMO.
What must be the probability that a randomly chosen young adult has some education beyond high school but does not have a bachelor's degree? What is the probability that a randomly chosen young adult has at least a high school education?
A standard deviation of 68. a score is considered outstanding if it is at least 420. what is the % of the scores would be outstanding?
in a class 20 of the students are male and 80 female. among male students 40 wears eye glasses among female students 30
a) What is the probability of getting four hits in a particular game? (Round your answer to 3 decimal places.) b)What is the probability of not getting any hits in a game?
nobel prize winners. the national science foundation collects data on nobel prize laureates in the field of science
Find the mean and standard deviation of your simulated sample weights. - How do your sample statistics compare to the theoretical population parameters in this case?
Provide an appropriate statistical description and summary of this data set; comment on any distinctive characteristics and postulate potential explanations for your observation.
The breaking strengths of cables produced by a certain manufacturer have a standard deviation of 96 pounds. A random sample of 50 newly manufactured cables has a mean breaking strength of 1950 pounds.
armstrong faber produces a standard number-two pencil called ultra-lite. since chuck armstrong started armstrong faber
If a member of this senior class is selected at random, find the probability that the student a) smokes but does not drink alcoholic beverages; b) eats between meals and drinks alcoholic beverages but does not smoke; c) neither smokes nor eats bet..
Nash's free throws. The basketball player Steve Nash is the all-time career free throw shooter among active players. He makes about 90% of his free throws.
in a survey of 1000 randomly selected adults in the united states participants were asked what their most favorite and
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