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Question: Suppose that a simple random sample is used to estimate the proportion of families in a certain area that are living below the poverty level. If this proportion is roughly .15, what sample size is necessary so that the standard error of the estimate is .02?
between quarterly audits a company checks its accounting procedures to detect problems before they become serious. the
a city planning commission is considering revamping the traffic system of the city. help them by calculating the mean
Alcohol abuse. Growing concern about binge drinking among college students has prompted one large state university to conduct a survey to assess the size.
Of three cards, one is painted red on both sides; one is painted black on both sides; and one is painted red on one side and black on the other. A card is randomly chosen and placed on a table. If the side facing up is red, what is the probability..
What percent of the children spend over 10 hours per day unsupervised? (Round your answer to four decimal places.)
Compute the average and standard deviation of the CD4 count for each group in month 0. Do you see any evidence that patients in the two treatment groups differed significantly from those in the control group in terms of their initial health status..
Antonia Martinez, who is running for the state senate, makes this statement: - What has Martinez told us about taxes, educational costs, and welfare?
Identify the population and sample of interest to the researchers.- Describe the variables measured in the study as quantitative or qualitative.
Does using simulation to estimate probabilities rely on the relative frequency or the personal probability interpretation of probability? Explain. Whichever one you chose, could simulation be used to find probabilities for the other interpretation..
Explain the difference between descriptive statistics and inferential statistics with less than 50 words? Name two graphs that can be used for describing qualitative data and two for describing quantitative data. Name one graph that can be used to ..
What was the capital sum of the money invested?
List the sample space. Determine the exact probability of creating a mini license plate with an E. Give solution exactly in reduced fraction form.
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