You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.2. You would like to be 90% confident that your esimate is within 4% of the true population proportion. How large of a sample size is required?

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

A: Given,population proportion(p)=0.1margin of error (E)=0.025α=1-0.95=0.05α2=0.025Z0.025=1.96

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 95% confidence level is

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. Based on previous evidence, you…

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

Q: You are testing the null hypothesis that the population proportion equals .45, using data you…

A: Z score is method to know that how many standard deviations away your data is from the mean.The…

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

A: The margin of error (E) is 0.03 and the confidence level is 95%.

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

A: The population proportion is 0.76, confidence level is 96%, and margin of error is 0.04.

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

A: Given that :  p = 0.23 Confidence level : 99% Margin of error : 2.5 % We have to find the sample…

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

A: Given dataError = 2.5% = 0.025Confidence level = 0.98

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

A: Given,   Margin error = 0.015 Population proportion = 0.21   The objective is to find the sample…

Q: If you have a z-score of 4.00 and the body proportion is .99997 and the question is asking for the…

A: The z-score is given by 4.

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

A: Given information: Population proportion p=0.9 Confidence level = 97% Margin of error = 4%

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:

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. based on previous evidence, you…

A:

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. Based on previous evidence, you…

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

A: Solution: From the given information, confidence level is 0.99 and E=0.01.

Q: If you want to be 99​%confident of estimating the population proportion to within a sampling error…

A: GivenSampling Error(E)=0.06population proportion(p)=0.36confidence…

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

A: Find z-critical value:…

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. Based on previous evidence, you…

A: It is given that margin of error (E) is 0.02 and the confidence level is 0.90.

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

A: It is given that margin of error (E) is 0.045 and the confidence level is 0.90.

Q: (c) Suppose that the researchers wanted to estimate the proportion of patients under 50 years old…

A: Givenx=19n=356Margin of error(E)=0.03p^=xn=19356=0.0534Confidence interval = 95%

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

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

A: Givenpopulation proportion(p)=0.74Margin of error(E)=0.05confidnence interval…

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

A: The formula for the sample size is as follows:

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

A: For a 99% confidence interval, the corresponding critical value is calculated using excel:

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

A: From the provided information, Population proportion (p) = 0.27 Margin of error (E) = 3.5% or 0.035…

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

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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 datayou would be 90% confident that you estimate iswith in 2% of the population.

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. Based on previous evidence, you…

A: This question requires accurate results, Hence I will use excel to solve this question.…

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

A: Find z-critical value:…

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. Based on previous evidence, you…

A: Given Information Error = 2% = 0.02 Confidence level = 0.90

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

A: Solution: Given information: Margin of Error = E = 0.01  α=0.10 Level of significance Assumed p =…

Q: How large a sample must she select if she desires to be 98% confident that the true mean is within 4…

A: HERE GIVEN , population standard deviation  = 6 ounces  confidence level = 98%  MOE  = 4

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= 13%=0.13 Margin of error = 4.5% = 0.045 98 %…

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. Based on previous evidence, you…

A: According to the provided information,

Q: Sleep Aids. The additional sleep, to the nearest tenth of an hour, obtained by a sample of 100…

A: Quantitative variable: A variable that provides numerical values of individual and Arithmetic…

Q: With no preliminary estimate of the proportion known, how many young adults would you survey to…

A: It is given that margin of error (E) is 0.10 and the confidence level is 0.99.

Q: You would like to be 99.9 confident that your estimate is within 2% of the true population…

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Q: (a) What proportion of college graduates answered yes when asked if they had ever used online…

A: The assumed CI for the difference in proportions is,     (p^1-p^2)±(Z * SE)where Standard Error…

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

A: It is given that margin of error (E) is 0.045, the population proportion is 0.19 and the confidence…

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

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

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.