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On any given day, the probability that the Ohio River at Cincinnati is polluted by a carbon tetrachloride spill is .10. Each day, a test is conducted to determine whether the river is polluted by carbon tetrachloride. This test has proved correct 80 percent of the time. Suppose that on a particular day the test indicates carbon tetrachloride pollution. What is the probability that such pollution actually exists?
Use critical values to test the hypotheses you set up by setting a equal to .10, .05, .01, and .001. (3) Do we estimate that m is less than 4 or greater than 4?
State the Null Hypothesis, State the Alternatice Hypothesis and state the Level of significance - State the Test Statistic - Does the data indicate that the mean remission time using the new drug is different from 12.5 week at a level of significanc..
1. suppose south korea can produce 100 computer chips with 10 hours of labor input and 50 bed linens with 6 hours of
Last year, at Northern Manufacturing Company, 200 people had colds during the year. One hundred fifty-five people who did no exercising had colds, and the remainder of the people with colds were involved in a weekly exercise program. Half of th..
What would be the Mode in this set of numbers? 2, 2, 0, 5,1, 4,1, 3, 0, 0, 1, 4, 4, 0,1, 4, 3, 4, 2, 1
Which of the following formulas would you use to find the probability that a sample mean is larger than some given value? z = (x - µ) ÷ σ µ = ∑x ÷ N
Regression analysis is one of the most widely used statistical techniques in the social sciences. So, what is it? In your answer, apply some of the techniques we have learned to regression -
A transmitter sends bits to a receiver across a noisy channel. The model for the noise is simple: regardless of whether a one or a zero was transmitted, the channel flips the bit with probability p = 0:1. Furthermore, assume that the noise acts on ea..
Consider the particle size of a particular product.
Toss the coin four times. If the coin lands either all heads or all tails, reject Ho: p=1/2 (the p denotes the chance for the coin to land on heads.) Complete parts a and b. a. what is the probability of a type 1 error for this procedure? b. if p=4/5..
Find the probability that - exactly two of the workers have been exposed to asbestos - Find the probability that exactly 15 babies are female.
An urn contains white and pink balls. Six balls are randomly drawn from the urn in succession, with replacement. That is, after each draw, the selected ball is returned to the urn. What is the probability that all balls drawn from the urn are white? ..
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