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MARGIN OF ERROR = within equal to 6%
MARGIN OF ERROR = within equal to 3%
MARGIN OF ERROR = within equal to 1%
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- You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 72%. You would like to be 99% confident that your estimate is within 4.5% of the true population proportion. How large of a sample size is required?n =arrow_forwardYou want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion. You would like to be 80% confident that you estimate is within 3.5% of the true population proportion. How large of a sample size is required? n = Question Help: Message instructor Submit Question H a ly FH f800 fg a f10 fularrow_forwardUse the expression in the accompanying discussion of sample size to find the size of each sample if you want to estimate the difference between proportions of men and women who own smartphones. Assume that you want 90% confidence that your error is no more than 0.05 Click the icon to view the discussion of sample size. The sample should include (Type whole numbers.) men and women. MEEDarrow_forward
- You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 38%. You would like to be 95% confident that your estimate is within 1.5% of the true population proportion. How large of a sample size is required? Hint: Textbook Videoarrow_forwardYou want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.38. You would like to be 97% confident that your estimate is within 3% of the true population proportion. How large of a sample size is required? n=arrow_forwardYou want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 32%. You would like to be 95% confident that your estimate is within 2% of the true population proportion. How large of a sample size is required? n = Question Help: D Post to forum Submit Question 吴☆母 NOV 2 12 W 3D ロarrow_forward
- You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion. You would like to be 95% confident that you estimate is within 2.5% of the true population proportion. How large of a sample size is required?n = ------------- NOTE: PLEASE PUT ANSWERS IN BOLD. PLEASE SUBMIT CORRECT ANSWERSarrow_forwardAssume that a sample is used to estimate a population proportion p. Find the margin of error E that corresponds to the statistics and confidence level. Round the margin of error to four decimal places. 90% confidence; n = 369, x = 133 Type your answer...arrow_forwardYou want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 29%. You would like to be 95% confident that your estimate is within 3.5% of the true population proportion. How large of a sample size is required? Hint: Textbook Video [+] n =arrow_forward
- Use the formula in this example to determine the sample size, n.The estimated prevalence is 19%, and the desired confidence level is 93% with a margin of error of 4%. (Round your answer to the nearest integer.)n =arrow_forwardYou want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion. You would like to be 98% confident that you estimate is within 5% of the true population proportion. How large of a sample size is required?n =arrow_forwardA researcher wants to determine the percentage given below. Describe how the researcher should apply the five basic steps in a statistical study. (Assume that all the people in the poll answered truthfully.) the percentage of volunteers that volunteer over 10 hours per week Determine how to apply the first basic step in a statistical study in this situation. Choose the correct answer below. A. The population is all volunteers that volunteer over 10 hours per week The researcher wants to estimate the number in this population that volunteer over 10 hours per week OB. The population is all volunteers. The researcher wants to estimate the percentage in this population that volunteer over 10 hours per week. C. The population is all volunteers that do not volunteer over 10 hours per week. The researcher wants to estimate the number in this population that do not volunteer over 10 hours per week. D. The population is all volunteers. The researcher wants to estimate the percentage in this…arrow_forward
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