Five hundred adults participated in a comparison of the effectiveness of 3 arthritic pain relievers. Each participant used 1 of the 3 medications for 1 month and then was asked if the product was effective. The results were as follows: Effective Yes No A 115 60 Hai Test Statistic: 95% Confidence Interval: Pain Reliever B Is there a difference in the effectiveness of these pain relievers? H₂i P-V alue: 78 72 C 140 35 Reject/Fail to Reject:

Q: How to identify the length of confidence interval

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Q: A 90% confidence interval for the population mean ?is 18 <u< 24, What is the sample mean

A:

Q: If n=130 and p (p-hat) =0.53, find the margin of error at a 99% confidence level Give your answer to…

A: The sample size is .The sample proportion is .The confidence level is .

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Q: f n = 243 and ˆpp^ = 0.267, construct a 95% confidence interval. Give your answers to three…

A: Given, (1-α)100% = 95%  α= 0.05 Zα2 =Z0.025  = 1.96 Using Excel function=NORMSINV(0.025)

Q: To make an 80% confidence interval ,which bootstrap percentiles must benused Use the  percentile…

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A: Given  n = 580 p^ (p-hat) = 0.35,

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Q: If n = 600 and ˆpp^ (p-hat) = 0.85, construct a 99% confidence interval. Round three places.

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Q: If n = 600 and ˆpp^ (p-hat) = 0.25, construct a 95% confidence interval.

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Q: Instruct a 95% confidence interval to estimate the pulation proportion with a sample proportion al…

A: Given that  Sample proportion p^=0.60 Sample size n =150

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Q: How can I find the 95% confidence interval for a hazard ratio based on theta1 and theta2 from an…

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Q: Construct a confidence interval  n=135 x=74 95% confidence

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Q: If n = 560 and ˆpp^ (p-hat) = 0.25, construct a 99% confidence interval.

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Q: If n=130 and ôp (p-hat) =0.93, find the margin of error at a 99% confidence level Give your answer…

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Q: If n = 120 and ˆpp^ (p-hat) = 0.7, construct a 95% confidence interval. Round three places.

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Q: Suppose that a 92% Confidence Interval for estimating the average heights, in inches, of all college…

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Q: What is the positive t-value for a confidence interval for the population mean with a sample size of…

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Q: If n = 140 and ˆpp^ = 0.25, construct a 99% confidence interval.Give your answers to three decimals

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Q: A sample of six college basketball player had an average weight of 217 pounds with a sample standard…

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Q: If n = 440 and ˆpp^ = 0.52, construct a 90% confidence interval. Give your answers to three…

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