After calculating the sample size needed to estimate a population proportion to within 0.05, you have been told that the maximum allowable error (B) must be reduced to just 0.025. If the original calculation led to a sample size of 1000, the sample size will now have to be:   Multiple choice 2000 8000 4000 1000   Show all work. Do not use Excel use Z or T table where applicable.

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Given that,   Critical value: Using the z-table, the critical value at 98% confidence level is ,

Q: You want to obtain a sample to estimate a popu time, you have no reasonable preliminary estimation…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

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Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: From the given information, the confidence level is 90% and the margin of error (E) = 2.5% = 0.025…

Q: ou want to obtain a sample to estimate a population proportion. At this point in time, you have no…

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Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: How large the sample size should be in order to be 98 percent confident, if the sample proportion is…

A: Given data, p=0.78 E=0.16 z-value at 98% confidence is Zc=2.326 n=?

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Sample proportion(p^)=0.5 Margin of error(E)=0.002

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Given information- Confidence interval = 0.99 Significance level (α) = 1- 0.99 = 0.01 Error (E) =…

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: From the given information,   Margin of error E= 0.01 Population proportion p= 0.33 Confidence level…

Q: Your state is considering raising the legal age for consumption of alcoholic beverages to 21 years…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: According to the provided information, Proportion is unknown. So, worse case proportion is 50%. p =…

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Here we need to obtain the required sample size with 95% confidence inorder to estimate the…

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Find z-critical value: Refer Standard normal table/Z-table OR use excel function…

Q: Let sample proportion . How large a sample should be taken to be 95 % sure that the error of…

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Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: We have given that,  Population proportion (p) = 58% = 0.58, margin of error (E) = 4% = 0.04 and…

Q: A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which…

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Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Given: The margin of error E=0.05 Confidence level = 90% Since the population proportion is not…

Q: You want to obtain a sample to esimate a population proportion. At this point in time you have no…

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Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: sample size n=?

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: