A political candidate has asked you to conduct a poll to determine what percentage of people support him. If the candidate only wants a 0.2% margin of error at a 99.5% confidence level, what size of sample is needed? When finding the z-value, round it to four decimal places.

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given,margin of error(E)=0.015assume sample proportion(p^)=0.5α=1-0.975=0.025α2=0.0125Z0.0125=2.2414…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: In this question, It has been given that Margin of error = 0.05 and level of significance = 0.005.…

Q: Answer = Find the probability that a sample of size n = 92 is randomly selected with a mean that is…

A: given  population  mean  μ  = 120000    population standard deviation σ   = 30000     given sample…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A:

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A:

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given Information:Margin of Error, e=1%=0.01Confidence Level, c=95%=0.95

Q: political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given that  Margin of error =E =0.002 99%confidence level.

Q: What is the distinction between independent and dependent samples in hypothesis testing involving…

A: The objective is to determine the distinction between independent and dependent samples in…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Assume p=0.5 and q=0.5, as the population proportion is unknown Here, margin of error e = 0.01 The…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

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

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given, Margin of Error E = 9% = 0.09

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Margin of error = 0.02 When no information is given related to the sample proportion, we assume it…

Q: Which of the following probabilities indicates a relationship that is not statisti­cally…

A: By statistically insignificant, we means that there is less difference between the measure of null…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A:

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: The random variable X follows binomial distribution. The margin of error is 0.01. The level of…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: The question is about sample size estimation Given : Marg. of error ( E ) = 0.10 Confidence level =…

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: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: When nothing is known about the population proportion, Consider population proportion (p) = 0.50.…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given information Error = 1% = 0.01 Confidence level = 0.99

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: When nothin is known about the population proportion, Consider population proportion (p) = 0.50…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: When nothing is known about population proportion, assume p=0.50 Calculate the z-critical value:…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given Information Error = 7% = 0.07 Confidence level = 0.99

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Solution: From the given information, confidence level is 0.995 and E=0.025. Since the proportion…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.