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A manufacturer of tow chains finds that the average breaking point is at 3,500 pounds and the standard deviation is 250 pounds. if you pull a weight of at least 4200 pounds with this tow chain, what percentage of time would you expect the chain to break.
We are asked to test for independence between age (i.e., adult and teen) and drink preferences.
What is the probability of a false negative test (the probability that a person having muscular distrophy tests negative)?
In 1998, as the advertising campaign, Nabisco Company announceda "1000 Chips Challenge," claiming. Develop the 95% confidence interval for average number of chipsin bags of Chips Ahoy cookies.
Find the probability that a man and woman are watching the schow at the same time. (This question confused me because it sounds like the statement I just wrote before this one)
Detremine the mean, standard deviation, and variance for this frequency distribution.
Why is statistical significance not necessarily of practical important difference to a business decision? Provide an example and explain.
Assume that a study of 500 randomly selected school bus routes showed that 480 arrived on time. Is it "significant" for a school bus to arrive late?
Use the binomial distribution in the Data Analysis add - in to simulate the distribution of men and women among the next ten arrivals at an emergency room, assuming that, on average, six people out of ten who arrive are men.
When 500 college students are randomly selected and surveyed, it is found that 135 of them own personal computers (based on data from the America Passage Media Corporation).
Determine 80% confidence interval for average weights of Allen's hummingbirds in study regions. Determine the margin of error?
A person purchased a slot machine and tested it by playing it 1,245 times. There are 10 different categories of outcomes, including no win, win jackpot, win with three balls, and so on.
A personnel manager is concerned about absenteeism. She decides to sample the records to determine if absenteeism is distributed evenly throughout the six-day workweek.
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