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In a 2010 pew reaserch study on trends in marriage and family, 4% of randomly selected respondents said that the trend of more single women having children is a " good thing". The 95% confidence interval is from 2.9% to 5.1% (n=1229).
a) Interpret this interval in this context.
b) Explain the meaning of "95% confident" in this context.
Problem: What formula would I use to compute the following problem if the first significant digit in any number must be? 1, 2,?3, 4,? 5, 6,? 7, 8, or 9.
a bank manager wishes to provide prompt service for customers at the banks drive-up window. the bank currently can
Probability and nonprobability are the two general categories of sampling. Probability sampling uses random selection, whereas nonprobability sampling does not.
Find the values for the range, interquartile range, the variance, and the standard deviation for the sample.
According to Catalyst, 14.3% executive positions in Fortune 500 companies are occupied by women in 2012. A random sample of 180 Fortune 500 executives was selected. What is the probability that 20% or less of this sample were women?
Drug is effective on 89% of women and 65% of men. It is known that 66% of the people who take the drug are women. What is the probability that the drug is effective?
(a). Estimate the percentage of female high school students in the region who smoke, along with a 95% confidence interval.
If there is evidence to suggest that the true mean thickness is greater than 1 8 inch, the town will embark on an extensive safety program. Using the interval constructed in part (a), should the town stress greater safety? Justify your answer.
Consider the case where we have n observations, sampled from a binomial pdf (our parameter estimator can therefore be given by X/n). Assume that the margin of error is 6%.
Distinguish among a cost center, a profit center, and an investment center. Provide an example of each for a multi-hospital corporation.
STT 100 Assignment - Based on Research and Hypothesis Testing. You then are required to collect data on a sample of a population concerning your selected topic
What is the probability that at least two men arrive before the second woman arrives and what is the probability that six fishes bite during the first two hours and what is the probability that he fails to catch any fishes during the first two hours?
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