Michael wants to make a confidence interval estimate for the proportion of community members in favor of a tax increase for more local school funding. If he wants the margin of error to be no more than 0.025 at a 90% confidence level b)Suppose he guesses that about 30% are in favor for the tax increase. What will be the required sample size in this case? Assume the same margin of error and confidence level.b)Suppose he guesses that about 30% are in favor for the tax increase. What will be the required sample size in this case? Assume the same margin of error and confidence level.

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A: Given data: n = 380  p^(p-hat) =0.12, To find : The margin of error at a 95% confidence level

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Q: In a random sample on 200 airline passengers, 84 said they would like a window seat. What is the…

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Q: If n=360 and P (p-hat) =0.48, find the margin of error at a 95% confidence level Give your answer to…

A: Given: n=360  , p^=0.48  we have to find margin of error at 95% confidence level

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A:

Q: A state’s Department of Commerce reports that 78 percent of all small businesses that applied for a…

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A: Solution: From the given information, confidence level is 0.92 and E=0.03.

Q: For a research, let's consider the 10-unit sample with s = 32,866 as a preliminary example. For a…

A: Given data,s=32866E=10z-value at 95% confidence is Zc=1.96n=?

Q: A state’s Department of Commerce reports that 78 percent of all small businesses that applied for a…

A: As per our guidelines, we are allowed to answer first question only. Thanks. Please post next…

Q: If n=230 and ˆp^ (p-hat) =0.31, find the margin of error at a 90% confidence level Give your answer…

A:

Q: If n=300 and ˆpp^ (p-hat) =0.52, find the margin of error at a 90% confidence level Give your…

A: Suppose p is the true proportion.

Q: 4. In theory, in 19 cases out of 20, the overall result of 23% will differ no more than three…

A: Given Data: p=0.23 E=0.03   a) Confidence Interval p±E0.23±0.03(0.20, 0.26) Therefore, answer:…

Q: If n=360 and p (p-hat) =0.29, find the margin of error at a 95% confidence level Give your answer to…

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Q: a. How many workers are there in each stratum? b. Estimate the mean forced vital capacity among the…

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Q: If n=380 and p (p-hat) =0.52, find the margin of error at a 95% confidence level Give your answer to…

A: Dear student, If you find this solution helpful please upvote ? it. The solution is given below:

Q: A state’s Department of Commerce reports that 78 percent of all small businesses that applied for a…

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A: Given,n=340p^=0.23α=1-0.95=0.05α2=0.025Z0.025=1.96

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Q: If n=350 and ˆpp^ (p-hat) =0.64, find the margin of error at a 90% confidence level Give your…

A: Proportion is almost similar to the concept of probability. Proportion is a fraction of population…

Q: If n=360 and p (p-hat) =0.48, find the margin of error at a 95% confidence level Give your answer to…

A: Given data,n=360p=0.48Z value at 95% CI is Zc=1.96Margin of error E=?

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Q: If n=380 and p (p-hat) =0.49, find the margin of error at a 99% confidence level Give your answer to…

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A: True

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Q: 3. Michael wants to make a confidence interval estimate for the proportion of community members in…

A:

Q: . Michael wants to make a confidence interval estimate for the proportion of community members in…

A: Given data, E=0.025 z-value at 90% confidence is Zc=1.645 p=0.30 n=?

Q: If n=480 and p^ (p-hat) =0.45, find the margin of error at a 90% confidence level Give your answer…

A:

Q: To find the proportion of San Diegans subscribed to Disney+ in 2019, a researcher randomly selected…

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Q: If n=350 and p (p-hat) =0.28, find the margin of error at a 99% confidence level Give your answer to…

A: n = 350p^ = 0.2899% confidence level

Q: Assume we had no prior knowledge about the true proportion π. We want to construct a 95% confidence…

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.