Find the minimum sample size required to estimate the proportion of the population that supports a political candidate if the required margin of error is 0.042 and the level of confidence is 90%

Q: Out of the 550 employees who were sent the company’s annual satisfaction survey, only 526 responded.…

A:

Q: A researcher wishes to​ estimate, with 95​% ​confidence, the population proportion of adults who…

A: (a) The estimate must be accurate within 4​% of the true proportion, 95% confidence and no…

Q: You wish to estimate, with a 99% confidence, the population proportion (p) of U.S adults who made…

A: Given information- Margin of error, E = 4.2% = 0.042 Confidence level, c = 99% a) Since no…

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

A: Here we need to find the sample size required in both the cases and compare the two results.

Q: researcher wishes to​ estimate, with 90​% ​confidence, the population proportion of adults who…

A: Given that Margin of error =E=0.05 Population proportion 84% = 0.84 90% confidence.

Q: Determine the minimum sample size required when you want to be 90​% confident that the sample mean…

A: Given Data: Margin of error=1  σ=10.4   z-score corresponding to 90% Confidence level=1.645   Let n…

Q: What is the best point estimate for average number of credit hours per semester for all students at…

A: Given : At the local college a study found that students earn an average of 14.3 credit hours per…

Q: Determine the minimum sample size required to have a margin of error of 3.5% with 90% confidence.

A: Determine the minimum sample size required to have a margin of error of 3.5% with 90% confidence.

Q: You wish to estimate, with a 99% confidence, the population proportion (p) of U.S adults who made…

A: Given: Margin of error (E)=0.042Confidence level (c)=0.99α=1-c   =1-0.99    =0.01Area=1-α2…

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

A:

Q: What shape do we need the sampling distribution of sample means to be to do a hypothesis test ?

A: In hypothesis test, sampling distribution of sample mean is Normal distribution. Normal distribution…

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

A:

Q: We are interested in conducting a study in order to determine what percentage of voters would vote…

A: Given that, If the prior information is unknown assume that the sample proportion  is 0.50 Critical…

Q: The chancellor wants you to calculate the largest sample size needed with a margin error of 5% and…

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

Q: The total population of a study is given at 500. the required sample size is 125. Determine the…

A: Given N=500, n=125

Q: A researcher wishes to​ estimate, with ​90%onfidence, the population proportion of adults who think…

A: Givenconfidence level(α)=90%Margin of error(E)=4%=0.04

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

A: It is given that margin of error (E) is 0.03 and the confidence level is 0.95.

Q: If the population proportion is 0.7. A researcher wants the margin of error to be 0.20 and the level…

A:

Q: We are interested in conducting a study in order to determine what percentage of voters of a state…

A: The confidence level is 95%. Therefore, α = 0.05 and α/2=0.025. The margin of error is 5% =0.05…

Q: number 2: Identify the sampling technique used

A: The objective is to identify which sampling technique is used for given question 2.

Q: 4. A provincial Hospital wants to estimate the proportion of the patients with high Unk Acid who…

A: Let p^ be the sample proportion and q^=1-p^ E is the error of margin. E=Zα2p^q^n Hence, the required…

Q: The minimum sample size needed is Is this sample size practical?

A: In the table the minimum samples sizes are given for various situations.

Q: How to find the minimum sample size required to estimate and unknown population mean?

A: To find the minimum sample size required to  estimate and unknown population mean,We can use Cochran…

Q: researcher wishes to estimate, with 99% confidence, the population proportion of adults who support…

A: It is given that Population proportion p = 0.72 Margin of error E = 0.02 Level of confidence = 99%…

Q: Caitlyn has to determine how many of the 120 employees in her work place has comprehensive car…

A: Total no of employees = 120 Sample = 40

Q: Determine the minimum sample size required when you want to be 90​% confident that the sample mean…

A:

Q: estimated that 80% of people with type 2 diabetes are overweight. You want to do a study on type 2…

A: Given Data : Margin of error: ME = 0.0463 sample proportion: p̂ = 0.8…

Q: A student wants to conduct a research in his school. If the school has a total number of4,800…

A: 1) Population size N=4800 Margin of error E=0.05   Slovin's Formula for sample…

Q: The true proportion of voters in favor of a candidate is unknown. A random sample of 329 voters…

A: The point estimate of true population proportion of the voters who favor the candidate would be the…

Q: A researcher wishes to​ estimate, with 99​% ​confidence, the population proportion of adults who…

A: From the provided information, Confidence level = 99% Margin of error = 0.04

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

A: Given data,E=3%=0.03z-value at 95% confidence is Zc=1.96

Q: Aresearcher wishes to estimate, with 95% confidence, the population proportion of adults who think…

A: The random variable who thought Congress is doing a good or excellent job follows binomial…

Q: A group of researchers wants to study students' adaptation to online learning as the new normal…

A: Given a group of researchers wants to study students adaptation to online learning as the new normal…

Q: A researcher wishes to estimate the proportion of college student who own a car. He wants to be 95%…

A: Given Confidence is 95% Error is 0.1

Q: A researcher wishes to​ estimate, with 99​% confidence, the population proportion of motor vehicle…

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

Q: A researcher wishes to​ estimate, with 90% ​confidence, the population proportion of adults who…

A: GivenMargin of Error(E)=0.02sample proportion(p^)=0.5α=1-0.90=0.10α2=0.05zα2=1.645

Q: A researcher wishes to estimate the proportion of executives who own an electric car. She wants to…

A: Significance level = 1- 0.9 = 0.1, Margin of error = E = 0.05.

Q: A researcher plans to conduct a survey. There are 15,400 students as target respondents, however due…

A:

Q: A researcher wishes to​ estimate, with 95​% ​confidence, the population proportion of adults who…

A: Margin of error is the degree of error that could occur during the sample survey. It is calculated…

Q: What is the Optimal Sample Size?

A: To perform any survey, we always have priority to get good sampling size of the population . thanks…

Q: .For a test market, find the sample size needed to estimate the true proportion of consumers…

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

Q: We need to estimate the average tv usage of households in 1 week. How many houses should we randomly…

A:

Q: 3 CI proportions 107 students at a college were asked whether they had completed their required…

A: n = 107 x = 57

Q: Find the minimum sample size you should use to assure that your estimate of p will be within the…

A: Given

Q: A researcher wishes to estimate the proportion of college students who own a car. He wants to be 95%…

A:

Q: A local cellular phone company wishes to estimate the proportion of Clinton County people who own a…

A: Given information: Confidence level is 95%. Significance level is 5%. From the standard normal…

Q: Solve for the sample size: Determine the sample size necessary to estimate the proportion of people…

A:

Q: You wish to estimate, with 99% confidence, the population proportion of US adults who think they…

A:

Q: The minimum sample size needed is

A: Given Table:

Q: The total population of a study is given at 500. the required sample size is 125. Determine the…

A:

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.