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In order to test a new car, an automobile manufacturer wants to select 4 employees to test drive the car for one year. If 12 management and 8 union employees volunteer to be test drivers and the selection is made at random, what is the probability that at least one union employee is selected?
The required margin of error around the population p. Margin of error: 0.09; confidence level: 95%; from a prior study, p is estimated by the decimal equivalent of 87%.
An investment firm with 10,000 clients would like to accurately forecast the average dollar amount their current customer will deposit over the coming year.
What are the estimated monthly sales for a particular region with a population of 796,000, per capita income of $6,940, and an unemployment rate of 6.0 percent?
Now consider the real numbers. In fact, lets narrow our focus way down to just the part of the real line between 0 and 1. Circle that part of the real line. How many real numbers are there in between 0 and 1? What can you conclude from all this?
a study on students drinking habits asks a random sample of 40 greek ones who belong to a fraternity or sorority uf
Use the Empirical Rule to estimate the proportion of costs within two standard deviations of the mean. What are these limits?
Which of the following will have no effect on the break-even point in units?
You are using a significance level of α = 0.05 to test a claim that p > 0.5. Your sample is a simple random sample of size n = 49. Calculate β for the test, assuming that the true population proportion is 0.7 and showing all work.
Calculate the horizontal component of the initial velocity of the shell.
you play two games against the same opponent. the probability that you win the first game is 0.4. if you win the first
1. the response to a question has three alternatives a b and c. a sample of 120 responses provides 60 a 24 b and 36 c.
Standard deviation of 1.4 inches. What is the probability that the average length of a steel from a sample of 36 is more than 27.65inches long?
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