Calculate the minimum sample size that you must have to meet these requirements.

Q: Suppose you have a population of 450 housewives and you want to know their preference for a…

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Q: A researcher wishes to estimate, with 95% confidence, the population proportion of motor vehicle…

A: (a)   Obtain the minimum sample size with no prior information available.   The minimum sample size…

Q: Estimate the chance that the sample proportion was more than 45% using a normal approximation.

A: Given information: Given that , 40 % of the primary doctors have made claim that their patients…

Q: What is the relationship between the amount of time statistics students study per week and their…

A: From the given information, Consider, X be the independent variable which denotes the time and Y be…

Q: Suppose you wish to determine the proportion of college students in NC who receive some form of…

A: Givenconfidence level=95%Margin of error(E)=0.04sample proportion(p^)=0.78

Q: The margin of error in a research study is indicative of the precision and accuracy of the research…

A: Margin of error is a measure of the extent to which the sample may vary from population.  It is a…

Q: ninimum sample size n n

A: Given :  Margin of error=E=3%=0.03 Significance level=α=0.10 Estimate of the proportion =p-hat=0.25…

Q: You wish to estimate, with 90% confidence, the proportion of tablet owners who use their tablets…

A: Solution: 1. From the given information, confidence level is 0.90 and E=0.02. Since the proportion…

Q: n Find the size of the sample needed to estimate the difference between the proportions of Democrats…

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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 Information: Confidence level = 80%  Error (e) = 0.05 Proportion (p) = 0.5 (assumed)  The z…

Q: Hookworm prevalence rate was 30% before the specific treatment and adoption of other measures.…

A: Given Proportion, P= 30%  So Q=100-30= 70% Allowable error, d is 0.03 and 0.06

Q: If you want to be99​% confident of estimating the population proportion to within a sampling error…

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

Q: a researcher wants to estimate a population proportion with a margin of error of 0.05. What is the…

A: Given that the margin of error is 0.05. Given confidence level is 95% Significance level is 5% From…

Q: company is in the business of selling wholesale strawberries to grocery stores. The company buys…

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Q: A study shows that 93% of people prefer milk chocolate over dark chocolate. How large of a random…

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Q: Dr. Victory is a child psychologist with an inner-city school district. He wants to estimate the…

A: The information provided in the question are as follows :- Margin of error (E)=0.08 And  Confidence…

Q: Determine the minimum sample size needed if we want to estimate the population percent of students…

A:

Q: A rare birth defect occurs in approximately 0.5% of all cases in males. If we sample all the males…

A: Given information: The total number of males born in 2016 in a specific region is N = 200,000. It is…

Q: (a) If researchers decide on a 4.2% margin of error for a 95% confidence interval. What sample size…

A: a) Given:    Sample proportion(p)      = 50%           = 0.5                           and   q…

Q: A researcher wishes to estimate, with 93% confidence, the percentage of people who own a home…

A:

Q: The pulse rates of 179 randomly selected adult males vary from a low of 43 bpm to a high of 103 bpm.…

A: Given : The pulse rates of 179 randomly selected adult males vary from a low of 43 bpm to a high of…

Q: Suppose that you are attempting to estimate the weight of 600 parts. In order to use the infinite…

A:

Q: Suppose you wish to determine the proportion of college students in your state who receive some form…

A:

Q: If you want to be 95​% confident of estimating the population proportion to within a sampling error…

A: z-critical value at alpha(0.95) = 1.96 margin of error =0.08   p = 0.5

Q: We want to estimate the number of female chicks in a big aviculture via sampling. How many chicks…

A: To estimate the number of female chicks with a specified margin of error and confidence level, we…

Q: You want to estimate the percentage of small incorporated businesses that are owned by women. A…

A: The random variable percentage of small incorporated businesses follows binomial distribution. The…

Q: You have a population of 100 engineering students at a certain university and you want to interview…

A: Assume, n be the minimum sample size required. N be the population. p^ be the sample proportion of…

Q: A pollster wishes to estimate the proportion of United States voters who favor capital punishment.…

A: The given data: The proportion of United states voters who favor capital punishment, p= 0.531 Margin…

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

A: sample size n=?