Find the sample size needed to estimate the percentage of residents of one region of a country who are left-handed. Use a margin of error of one percentage point, and use a confidence level of 90%. Complete parts (a) through (c) below. a. Assume that p and ĝ are unknown. The sample size needed is (Round up to the nearest whole number as needed.)

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A: Provided information: Margin of error = 0.028 Confidence level = 99%

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A: The margin of error (MOE)=126 Standard deviation (σ) =500 Confidence level=99% The objective is to…

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

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A: Given,confidence interval=(0.764, 0.790)

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A: From the provided information, Confidence interval is (0.751, 0.777)

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A: It was stated that confidence level is 95%. Margin of error is 5%. For a population of 100000, need…

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: From the given information, Margin error = 0.008 Assume sample proportion = 0.5   Critical value:…

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: Given,margin of error(E)=0.058sample proportion (p^)=0.235α=1-0.76=0.24α2=0.12Z0.12=1.175…

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A: The sample proportion (p) p = 0.65 + 0.71 / 2 p = 0.68

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Q: use the given data to find the minimum sample size required to estimate the population proportion.…

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Q: Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E.…

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Q: Use the given confidence interval to find the margin of error and thr sample mean. (5.42, 8.56)

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A: Solution: From the given information, X=123 and n=280.

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A: Given data n=293 x=47.1% confidence level is 99.5%

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Q: Use the given data to find the minimum sample size required to estimate a population proportion or…

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Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: Given that, Margin of error If the prior information is unknown, assume that the value of sample…

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Q: find the indicated z value of z α/2 that corresponds to the confidence level of 89.43%

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Q: Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E.…

A: From the provided information, Sample size (n) = 353 Number of success (x) = 148 The sample…

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Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: From the given information,   Margin error = 0.07 Sample proportion = 0.22   The objective is to…

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A: Since p and q are not mentioned (probability), so will assume that both p and q = 0.5 where q = 1-p…

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Q: Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E.…

A: Given n=329 X=39

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A: Given (a) n = 100, p̂ = 0.57 (b) n = 200, p̂ = 0.57.   (c) n = 200, p̂ = 0.40.

Q: Use the given information to find the minimum sample size required to estimate an unknown population…

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Q: use the given data to find the minimum sample size required to estimate the population proportion…

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

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A: Let us assume p^=0.5q^=1-0.5=0.5margin of error(E)=0.06α=1-0.90=0.1α2=0.05Z0.05=1.645    (from…

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Q: population of 1000 with 95% confidence level (Using Slovin's Formula). What is the sample size? a.…

A: Given that : Population size (N) = 1000 Confidence interval = 95%  By using Slovin's Formula we…

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

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Q: 4) Consider a confidence level of 90%. If n=68 and ?̂ = 0.42 Calculate the margin of error. 5)…

A: According to our guidelines we can answer only first question and rest can be reposted.

Q: Use the given data to find the minimum sample size required to estimate the popula proportion.…

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Q: Use the given confidence interval to find the margin of error and the sample proportion.…

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A: Sample mean for given values is 84.8, =AVERAGE(C23:C27). Here, the column C represents the data…

Q: Use the given data to find the minimum sample size required to estimate a population proportion or…

A: Given: Margin of error (E) = 0.04 Confidence level = 90% Assume, p^=0.5