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There are 13 qualified applicants for 4 trainee positions in a fast-food management program. How many different groups of trainees can be selected?
the weekly mean income of a group of executives is 1000 and the standard deviation of this group is 100. the
Compute a 90% confidence interval for the difference in population means of groups drinking alcohol before sleeping and those not drinking alcohol before.
Find the given descriptive statistics for Kalamazoo County, Michigan: Of those who are 25 or older, the percentage who are high school graduates
If you meet a shy person at random at the gathering, what is the probability that the person is a statistician?
An alcohol awareness task force at Big-Ten university sampled 20 students after the midterm to ask them whether they went bar hopping the weekend before the midterm or spent the weekend studying
A corporation owns a factory that produces sulfuric acid. Because of changing conditions, the plant's output is quite variable. The company's president has observed that the output is normally distributed with a mean of 8,200 pieces per hour.
After two years, he stops making monthly contributions, because the interest rate changes to 15% per year compounded every two months, if no withdrawals or deposits are made for 4 years, what will the balance be in this account?
The winning team's score in 13 high school basketball games was recorded. If the sample mean is 54.3 points and the sample standard deviation is 11.0 points, find the 98% confidence interval of the true mean.
Find a set of data of interest to you, such as rents from a newspaper or test scores from a class, with at least 12 numbers. Include the data with your answer.
Classify each random variable as discrete or continuous.- The number of visitors to the Museum of Science in Boston on a randomly selected day.
What item/s can be deleted to improve reliability, what items should never be deleted to maintain reliability of data and how many items need to be deleted to achieve maximum reliability
Arrows. An Olympic archer is able to hit the bull's-eye 80% of the time. Assume each shot is independent of the others.
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