Please show work using Excel Functions! 29. Suppose a study designed to collect data on...
Please show work using Excel Functions!
| 29. Suppose a study designed to collect data on smokers and nonsmokers uses a preliminary estimate of the proportion that smoke of 22%. How large a sample should be taken to estimate the proportion of smokers in the population with a margin of error of 0.02 and using 80% confidence? | |||||||||||
| A. 550 | B. 705 | C. 1027 | D. 1161 | ||||||||
Homework Answers
Given that, proportion = p = 0.22
margin of error = E = 0.02
A 80% confidence level has significance level of 0.20 and
critical value is, 
(Excel command: =NORMSINV(0.90) = 1.28155)
We want to find the sample size (n),
Answer : B) 705
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Please show work using Excel Functions!
29. Suppose a study designed to collect data on...
Please show step by step on EXCEL The Centers for Disease Control reported the percentage of...
Please show step by step on
EXCEL
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 26. 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...
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The centers for Disease Control reported the percentage of people 18 years of age and older...
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 .30. How large a sample should be taken to estimate the proportion of smokers in the population with a margin of error of .02? Use 95% confidence. Assume that the study uses your sample...
The Centers for Disease Control reported the percentage of people 18 years of age and older who smoke (CDC website, Dece...
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The Centers for Disease Control reported the percentage of people 18 years of age and older...
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 .25. 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....
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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Please show step by step on
EXCEL
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 26. 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...
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....
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 .25. 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....
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 27. a. How large a sample should be taken to estimate the proportion of smokers in the population with a margin of error of .02 (rounded up to the next whole number)? Use 95%...
The Centers for Disease Control reported the percentage of people 18 years of age and older who smoke (CDC website, December 14, 2014). Supposc that a study designed to collect new data on smokers and nonsmokers uses a preliminary estmate of the proportion who smoke of .31 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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explain finals are this week
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