Carry out the simulation in Mini-Project # 2 using a computer or website instead of physically doing so. Go through the same steps and answer the same questions.
Answer to relevant QuestionsOne of the questions asked in a Gallup poll taken in May, 2012, in the United States was: “All in all, if you had your choice, would you want to be rich, or not?” (Newport, 2012). (A previous question had asked ...In a 2008 Scripps Howard News/ Ohio University survey of 1003 randomly selected adults, 56% said that it is either very or somewhat likely that there is intelligent life on other planets (www.scrippsnews.com/node/34758). ...Refer to Exercise 22. Of the 193 placebo takers, 43 reported headaches. a. Compute a 95% confidence interval for the true population proportion that would get headaches after taking a placebo. b. Notice that a higher ...Explain whether the width of a confidence interval would increase, decrease, or remain the same as a result of each of the following changes: a. The sample size is doubled, from 400 to 800. b. The population size is ...In Chapter 20, we learned that to compute an approximate 90% confidence interval, the appropriate multiplier is 1.645 instead of 2.0. This works for confidence intervals for one mean or the difference in two means as well. ...
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