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You flip 10 different coins at the same time. What is the probability of all coins coming up heads?
Find the probability that a randomly selected man who has never married is between 35 and 44 years old (inclusive).
Customers arrive into a queue, where they are served, and then depart. We model the time between two successive arrivals by an exponential distribution.
What is a hypothesis? Specifically, is it a statement about the population or the sample?
Suppose we are producing copper wire and putting the wire on spools. Each spool contains 100 feet of wire.
When an election for political office takes place, the television networks cancel regular programming and instead provide election coverage
Ravencheck Resources, Inc. is a brokerage of ten salespeople. A productivity survey of the firm's employees indicated the following data:
The current average processing time at the drive through is 3 min. The manager wants to reduce this processing time to 2 min.
Identifying individuals with a high risk of Alzheimer's disease usually involves a long series of cognitive tests.
Suppose the random variable S has moment generating function of (q + p *(e^t))^n where q= 1- p, 0 < p < 1 and n is a positive integer.
In the previous problem, suppose the worker walks at 5 feet per second and takes 10 seconds to remove the item from the storage rack.
Develop a research design for a pretend study. It will be quantitative to study the effects of linguistic modification on nursing exams for one year.
Let X and Y have joint probability mass function Pr{X = i, Y = j}= c(i + 1)(j + 2) for i >= 0, j >= 0, and i + j < 4.
Using your same data determine if the proportion of green candies in a package of M&Ms is different than what is claimed by the company
In order to test a new car, an automobile manufacturer wants to select 4 employees to test drive the car for one year.
Determine the number of people needed to ensure that the probability at least two of them have the same day of the year as their birthday.
Although there is a popular belief that herbal remedies such as ginkgo biloba and ginseng may improve learning and memory in healthy adults
Suppose X has probability mass function Pr{X = k} = c(k + 2) for k = -1, 0, 1, 2 . Find c, and compute the mean, variance, and standard deviation of X.
Suppose that each of the players has a defined strength (all different), and the strongest player wins each match then is it clear that the first prize.
A local college requires an English composition course for all freshman. This year they are evaluating a new online version of the course
A particular type of electronic component for use in PCs is mass produced and subject to quality control checks since it is known that 2% of all components.
A hospital group operates 33 clinics in Indiana and Illinois. A study was conducted to estimate the difference in mean time spent per visit for men and women.
The shortlist consists of 7 men and 3 women. Because all the shortlisted applicants are considered to be equally qualified.
Carol and David decide to play a game as follows: Carol draws and keeps a card from a shuffled pack number 1 to 6.
Using the Internet, students will access information and statistics about professional basketball teams.