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A pharmaceutical company has developed a screening test for a rare disease that afflicted 2% of the population. Unfortunately, the reliability of this test is only 80%, which means that 20% of the tested will get a false positive. If a subject is tested positive based on this test, what is the probability that he has the disease?
What is the probability that the sum of their scores exceeds 1200 and probability that the average of the scores of all 400 student
To guarantee that cans of soda are properly filled, some cans are sampled and the amounts measured. The overall average for the samples is 12 ounces.
What is the probability of finding 1 or more children with chronic bronchitis in a population where the incidence rate of chronic bronchitis is 10% (like the one above?)
Let's further suppose that there was good interrater reliability on these frequency counts of behaviours and that they are interval/ratio level of measure, normally distributed, and independent observations.
Find a 99% confidence interval estimate of the proportion of people who say that they voted.
You know that all sociology majors study 2.5 hours per day with a standard deviation of 1.
At the end of each academic year, 13% of assistant professors become associate professors and 18% leave the department; 21% of associate professors become full professors, and 17% leave the department; and 9% of full professors leave the departmen..
Let S = {c, h, j, q, t, y} be a sample space of an experiment and let E = {c, h}, F = {c, q, y}, and G = {h, j, t} be events of this experiment. (Enter your answers using roster notation. Enter Ø for the empty set.)
Using multiple linear regression, compute the regression equation for the following data in Excel.
A fair coin is flipped 3 times. Compute the odds of flipping 3 tails.
Given that this sample is extremely large, can the responses be considered to be representative of the population of the United States? Explain.
When using the normal distribution (empirical rule) to obtain the bounds for 99.73 percent of the value in a population, the interval generally will be ______the interval obtained for the same percentage if Chebyshev's theorem is assumed., shorter..
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