A campaign staffer would like to estimate the proportion of likely voters who will vote for a particular candidate in the upcoming election. To help with this estimate, the staffer surveyed a small group of likely voters and found that 52% of the sample supported the candidate. How large a sample should be selected such that the margin of error of the estimate for a 98% confidence interval is at most 4.2%. Round the solution up to the nearest whole number.

Q: A political candidate has asked his/her assistant to conduct a poll to determine the percentage of…

A: Given E=0.04 Alpha=0.05

Q: Beth wants to determine a 90% confidence interval for the proportion of high school students in a…

A: We have given that,  Population proportion (p) = 0.57, margin of error (E) = 0.04 and confidence…

Q: oming election. To help with this estimate, the staffer surveyed a small group of likely voters and…

A: Given : Margin of error: ME = 0.045

Q: Suppose you want to construct a confidence interval with a margin of error of 0.03 (3%). Find the…

A: The formula for calculating sample size is, n = z2*p^(1-p^)MOE2 Where, z is the z score (default…

Q: Eric randomly surveyed 150 adults from a certain city and asked which team in a contest they were…

A: Given Eric randomly surveyed 150 adults Eric obtained a 95% confidence interval

Q: Form 90%, 95%, and 99% confidence intervals for the proportion of voters who favor the candidate.…

A: Given that Sample size n = 1000 Number of respondents favor the candidate, X = 214 The critical…

Q: Professor Smith loves dark chocolate, and she would like to find out the proportion of the…

A: Given Information: Sample size (n) = 850 Out of which x = 600 people chose dark chocolate.…

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Given: n= 531 ,x= 201.0 At 95.0 % confidence level , z score= 1.96 Need to find confidence interval…

Q: n a recent poll, 330 people were asked if they liked dogs, and 30% said they did. Find the margin of…

A: given data, n=330p=0.30CI=0.99α=1-0.99=0.01ME=?

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

A: Here, there is no information about the population parameter. Hence, use the conservative estimate…

Q: Nearly 10,000 U.S. Adults were asked their opinion regarding the legalization of marijuana. 10% of…

A:

Q: Leana is interested in the proportion of people who live in her area who own a dog. She randomly…

A: Suppose p is the population proportion of people who live within one mile of Person L’s home who own…

Q: ou are a manager for a local convenience store. You want to determin proportion of your customers…

A: Given that  Margin of error =E=6.50%=0.0650 99% confidence.

Q: f n=300 and x=60, construct a 99% confidence interval estimate for the population proportion.

A: n=300 and x=60, construct a 99% confidence interval

Q: Use the data in the table to the right to answer the following questions. Find the sample proportion…

A: From the provided information, Total candy (n) = 41 Total red candy (x) = 7 The required proportion…

Q: Alan wants to estimate the proportion of adults who walk to work. In a survey of 10 adults, he finds…

A: Given: Alan wants to estimate the proportion of adults who walk to work. Total number of adults=10…

Q: Through polling, it was estimated that the percent of people who will vote for a particular…

A: Given information Percentage of people who will vote in a upcoming election p-hat = 36.2% Margin of…

Q: previous election, the confidence interval for the proportion of likely voters who would vote for…

A:

Q: Thelma and Louise are each attempting to estimate the proportion of adults who enjoy listening to…

A: It is given that Estimate of proportion p = 0.29 Thema's interval = (0.242, 0.338) Louise's interval…

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

A: Given that, Margin of error = 3% = 0.03 99% confidence level

Q: A political researcher takes a survey of 310 randomly selected registered voters in Orlando, and…

A:

Q: How many soldiers should Haley sample?

A: It is given that Proportion = 79% = 0.79 Margin of error E = 0.005 Confidence level = 93% The…