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 98% confident that you estimate is within 1% 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. Based on previous evidence, you…

A: The confidence level is 95% Therefore, α = 0.05 and α/2=0.025. The margin of error is 0.045 Since…

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

A: Given  Margin of error=E=2.5%=0.025 80% confidence level then alpha=0.20 ,Zc=1.28 The no estimate of…

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

A: Introduction: The confidence interval for the population proportion, p at the 100 (1 – α) %…

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

A: From provided information; Margin of error M.E = 4.5% that is 0.045 Confidence level= 90% The z…

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…

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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: Here we need to find the required sample size. Given margin of error is 3%.

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: Let point estimte be p=0.5E=2%=0.02z-value at 95% confidence is Zc=1.96n=?

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

A: When we don't have any prior information about the population proportion, we generally take it as…

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. At this point in time, you have no…

A: compute sample size ( n ) = n=(Z/E)^2*p*(1-p)

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

A: Answer:-  Given, P=0.76 q=1-p=1-0.76=0.24 Confidence level=99% Critical Z value =2.5758 Margin of…

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…

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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. Based on previous evidence, you…

A: Obtain the sample size of a preliminary estimate for p is 0.77. The formula of sample size is, Use…

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

A: Find z-critical value:…

Q: a nutritionist wishes to determine, within 3% the true proportion of adults who do not eat lunch. if…

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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: The confidence level is 99.5%, margin of error is 0.2%.

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

A: Given that Confidence level (C) = 95% We don't have any reasonable estimate for the population…

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

A: It is given that margin of error (E) is 0.05 and the confidence level is 0.99.

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

A: From provided information; Margin of error M.E = 0.01 Confidence level= 99% Considering population…

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

A: The calculation for the size of the population can be done using the finite population or infinite…

Q: The US population is 13% African American.  If you were to take a SRS of 500 Americans, above what…

A: Solution:From the given information, the proportion of African American is 0.13, random sample of…

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

A: Given that, Critical value: Using the z-table, the critical value at 99% confidence level is,

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. At this point in time, you have no…

A: Obtain the sample size of a no preliminary estimate for p. The formula of sample size is, Use EXCEL…

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. Based on previous evidence, you…

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…

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

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) = 0.86 Confidence level = 99% Margin of…

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

A: Given Information:  Confidence level = 90% Error (e) = 0.035 (3.5%) z score at 90% confidence level…

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. Based on previous evidence, you…

A: The confidence level is 99%. Therefore, α = 0.01 and α/2=0.005. The margin of error is 0.015 The…

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 90% confidence level is,

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

A: The confidence level is 90%. Therefore, α = 0.10 and α/2=0.05. The margin of error is 5% =0.05 Since…

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

A: p = 0.42 z-critical value at alpha(0.01) is 2.576. ME = 0.05

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

A: Obtain the large sample size. The large sample size is obtained below as follows: The formula of…

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

A: Given that, P ^= 0.5 ( assume 0.5) 1 - P ^= 1 - 0.5= 0.5

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

A: The confidence level is 90% Therefore, α = 0.10 and α/2=0.05. The margin of error is 0.02 The…