In a random sample of 275 students at a university, 225 stated that they were nonsmokers....
In a random sample of 275 students at a university, 225 stated that they were nonsmokers. Based on this sample, compute a 92 % confidence interval for the population proportion of all students at the university who are smokers. What is the Best point estimate, Margin of Error and Include the written statement.
Homework Answers
![Solution :- given that, x = 225 n = 275 P = 225 - 0.818 215 the z is Point estimate 8 = 0.818 1- 6 = ]- 0.818 = 0. 182 | At 9](http://img.homeworklib.com/questions/91700f80-025f-11ec-a933-718894bf7476.png?x-oss-process=image/resize,w_560)
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In a random sample of 275 students at a university, 225 stated
that they were nonsmokers....
In a random sample of 250 students at a university, 207 stated that they were nonsmokers....
In a random sample of 250 students at a university, 207 stated that they were nonsmokers. Based on this sample, compute a 90% confidence interval for the proportion of all students at the university who are nonsmokers. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places. = What is the lower limit of the 90% confidence interval? What is the upper limit of the 90% confidence interval?...
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2. Suppose that a random sample of 41 state college students is asked to measure the...
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What proportion of JMU students like online courses? To estimate this, a random sample of 200...
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1. The Centers for Disease Control reported the percentage of people 18 years of age and...
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The centers for Disease Control reported the percentage of people 18 years of age and older...
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The Centers for Disease Control reported the percentage of people 18 years of age and older...
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In a random sample of 250 students at a university, 207 stated that they were nonsmokers. Based on this sample, compute a 90% confidence interval for the proportion of all students at the university who are nonsmokers. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places. = What is the lower limit of the 90% confidence interval? What is the upper limit of the 90% confidence interval?...
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1. The Centers for Disease Control reported the percentage of people 18 years of age and older who smoke (CDC website, December 14, 2014). Suppose that a study designed to collect nevw data on smokers and nonsmokers uses a preliminary estimate of the proportion who smoke of 0.30. a) b) c) How large a sample should be taken to estimate the proportion of smokers in the population with a margin of error of 0.02? Use 95% confidence Assume that the...
The Centers for Disease Control reported the percentage of people 18 years of age and older who smoke (CDC website, December 14, 2014). Suppose that a study designed to collect new data on smokers and nonsmokers uses a preliminary estimate of the proportion who smoke of .35. a. How large a sample should be taken to estimate the proportion of smokers in the population with a margin of error of .02 (to the nearest whole number)? Use 95% confidence. b....
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