A researcher wishes to​ estimate, with 95​% ​confidence, the population proportion of adults who eat fast food four to six times per week. Her estimate must be accurate within 2​% of the population proportion. ​(a) No preliminary estimate is available. Find the minimum sample size needed. ​(b) Find the minimum sample size​ needed, using a prior study that found that 32​% of the respondents said they eat fast food four to six times per week. ​(c) Compare the results from parts​ (a) and​ (b).

Q: 2) Assume the p=.03 (3%). How large a sample is needed to estimate the proportion of breast cancer…

A:

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: 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: 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…

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

A:

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

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

A: The random variable time spent on shopping follows normal distribution. We have to find the sample…

Q: A television sports commentator wants to estimate the proportion of citizens who​ "follow…

A: Solution: a. From the given information, confidence level is 0.96, p=0.48 and E=0.03.

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

A:

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

A: Given Information: Margin of​ error: 0.03​ confidence​ level: 99% p is estimated by 0.13

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

A: The formula of sample size is, Use EXCEL Procedure for finding the critical value of z.   Follow…

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

A: Ans - Given, Margin of error: E =  0.01;      confidence level: 95%; α = 1 - 0.95 = 0.05 Zα2  = 1.96…

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

A: The confidence level is 93% Therefore, α = 0.07 and α/2=0.035. The margin of error is 0.002 Since…

Q: A pool of 500 Houston residents indicated that 16% of them participated in Women’s March on January…

A:

Q: You would like to estimate the proportion of all residents in favor of a new law with 98%…

A: The sample proportion is 0.30, margin of error is 0.06, and the confidence level is 98%. Computation…

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

A: Given, Margin of error E = 0.05 Confidence level = 99% p = 0.15 At 99% confidence level the z is, α…

Q: A researcher wishes to estimate the proportion of adults who have high-speed internet access. What…

A:

Q: A television sports commentator wants to estimate the proportion of citizens who​ "follow…

A: Given Data: Margin of Error=0.22 p=0.54   z-value=1.96

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

A: The confidence level is 95% Therefore, α = 0.05 and α/2=0.025. The margin of error is 0.01 Here, p=…

Q: In a study of government financial aid for college students, it becomes necessary to estimate the…

A:

Q: Your state is considering raising the legal age for consumption of alcoholic beverages to 21 years…

A: p = 0.5 Margin of error = 0.01

Q: A researcher wishes to​ estimate, with 80​% ​confidence, the population proportion of adults who…

A: The confidence level is 80%, and margin of error is 2%. There is no preliminary estimate.

Q: Suppose a certain Statistics instructor wants to estimate the proportion of students who enjoy…

A: since estimate for proportion is not known therefor we take p⏞=0.5 margin of error=E= 0.03 level of…

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…

Q: Sample size. A pollster wishes to estimate,with 95% confidence, the proportion of people who believe…

A: It is given that margin of error (E) is 0.03 and the confidence level is 95%.

Q: The “promotions manager” of a large cosmetics manufacturer wanted to investigate user acceptance…

A: The objective of the question is to identify the best statistical estimate for the proportion of all…

Q: Find the sample size, n, needed to estimate the percentage of adults who have consulted fortune…

A: Obtain the sample size of a preliminary estimate for p is 0.14.   The formula of sample size is,…

Q: estimate the population proportion p,what is the minimum sample size we need in order to achieve a…

A: Solution: From the given information, confidence level is 0.95, p=0.1 and E=0.01.

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.