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In a recent study of Vietnam veterans, researchers found that in a sample of 2101 veterans, 777 had been divorced at least once. Assuming that these veterans were a simple random sample from the population of all Vietnam veterans, find a 90% confidence interval for the proportion of the population who have been divorced at least once. Write a confidence statement.
a class of statistics students was asked regarding your weight do you think you are about right overweight or
Apply the problem discovery sample size formula to several finite populations. How should I integrate the finite population correction factor (FPC) into this formula?
what is the probability that a hand of five cards chosen randomly and without replacement from a standard deck of 52
a car manufacturer claims that the miles per gallon for a certain model has a mean equal to 40.5 miles with a standard
What measure would you use and why? Make sure to provide enough detail about the situations so that others can understand your responses. Work as a correctional officer.
Elizabeth Bailey is the owner and general manager of Princess Brides, which provides a wedding planning service in Southwest Louisiana.
Fuji Importers' tubes are 4 percent defective, Kirkpatricks' 7 percent, and Parts, Inc. are 6.5 percent defective. (a) What is the overall percent defective?
For each of the following studies, say whether you would use a t test for dependent means or a t test for independent means.
Estimate the true proportion of incomplete files for ALL the bank's commercial loans. Write a statement about the confidence level and the interval you find.
At the 0.05 level of significance, test whether the software package has reduced the average time it takes to complete deliveries.
Use a 0.01 significance level to test the claim that the selection process is biased against Americans of Mexican ancestry. Does the jury selection system appear to be fair?
The ACT is an exam used by colleges and universities to evaluate undergraduate applicants. The test scores are normally distributed. In a recent year, the mean test score was 21.1 and the standard deviation was 5.0.
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