Refer to the previous exercise. Show how you can get a 95% confidence interval for the proportion of American adults who were opposed to the death penalty from the confidence interval stated in the previous exercise for the proportion in favor.
Answer to relevant QuestionsA Harris poll of a random sample of 2113 adults in the United States in October 2010 reported that 72% of those polled believe that stem cell research has merit. ...In the previous exercise, suppose the same proportions resulted from n = 140 (instead of 1400), with counts 66 and 74. a. Now does a 95% confidence interval allow you to predict the winner? Explain. b. Explain why the same ...Having estimated the mean amount of time spent watching TV in Example 6, we might want to estimate the mean for various groups, such as different religious groups. Let’s consider Muslims. A recent GSS had responses on TV ...A hospital administrator wants to estimate the mean length of stay for all inpatients using that hospital. Using a random sample of 100 records of patients for the previous year, she reports that “The sample mean was 5.3. ...In response to the GSS question in 2008 about the number of hours daily spent watching TV, the responses by the five subjects who identified themselves as Hindu were 3, 2, 1, 1, 1. a. Find a point estimate of the population ...
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