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The results of a Newsweek poll concerning views on abortion showed that of n = 1002 adults, 39% favored the right-to-life stand while 53% were pro-choice. The poll reported a margin of error of plus or minus 3%.
a. Construct a 90% confidence interval for the proportion of adult Americans who favor the right-to-life position.
b. Construct a 90% confidence interval for the proportion of Americans who favor the pro-choice position.
a sample of 308 subscribers to wired magazine shows the mean time spent using the internet is 14.8 hours per week with
A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 30.
Set up a hypothesis test to validate this claim. Using a significance level of .01 to test this hypothesis, what is your decision rule
please respond with your thoughtsopinions and use examples to support your answer on the two separate posts in at least
Use a graphical technique to compare the divorce rates in 1992, 2008 and 2012 broken down by age for Australian Male. Describe your graph.
If sensitivity and specificity remain constant, determine the relationship of prevalence to predictive value positive and predictive value negative?
If an employee is selected for promotion, find the probability that the employee will be under 25 or a female. Express your answer as a fraction in lowest terms.
Which of the following is the correct set of probabilities for X and if a student is selected at random, the probability he or she is either a Junior or a Senior
The mean time between reoccurring events is exponentially distributed with a mean time between events of 15 minutes.
State the alternative hypothesis that would be used to determine if Brand A has a higher proportion of defective smoke detectors than Brand B. Calculate the test statistic for determining if a difference exists between the failure rates of the two..
Is there evidence that the population mean is above $300, if X (bar) = $305.11 and s = $43.20?
in the annual report a major food chain stated that the distribution of daily sales at its detroit stores is known to
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