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In a poll of 150 randomly selected adults 78 said they favored a new proposition. compute a 95% confidence interval for the proportion of all adults in favor of the proposition at the time of the poll.
A. What is the lower limit of the 95% confidence interval?
B. What is the upper limit of the 95% confidence interval?
Determine the point estimate and 95% confidence interval for the mean family dental expenses of all employees of the company.
Assume that a 95% confidence interval for the mean is 15.0
Compute the population attributable risk for smoking and lung cancer.
Explain clearly, in your own words, what is a Type I error in this context.
Discuss the role of sensitivity analysis in LP. Under what circumstances is it needed, and under what conditions do you think it is necessary?
State the alternate hypothesis for this study? What critical value should be used to determine the rejection region? Use the 1 proportion Z-test.
Test whether there is difference in the proportion of viewers using Chi square test.
a) Under what circumstances can z be greater than one? b) Under what circumstances can a probability be greater than one?
What extremely important characteristic of the data set is not considered in the hypothesis test?
How would you go about studying a nonlinear or curvilinear relationship between two variables using contingency tables and chi-square tests? Provide examples from you own professional experience.
Valley Fruit Products Company has contracted with apple growers in Ohio, Pennsylvania, and New York to purchase apples that the company then ships to its plants in Indiana and Georgia
As a way of fund raising, you decide to set up a hot dog stand, after a few weeks of doing this you sell 8 hot dogs every 10 minutes.
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