oming election. To help with this estimate, the staffer surveyed a small group of likely voters and found that 17% of the sample supported the candidate. How large a sample should be selected such that the margin of error of the estimate for a 96% confidence interval is at most 4.5% . Round the solution up to the nearest whole number .

Q: A campaign staffer would like to estimate the proportion of likely voters who will vote for a…

A: It is given that margin of error (E) is 0.075 and the confidence level is 96%.

Q: uring an election, Kevin and Britney took a poll of 1,200 voters, and asked what the most…

A:

Q: A survey of shoppers is planned to see what percentage use credit cards. Prior surveys suggest 53%…

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Q: A 95% confidence interval for the proportion p active voters in the municipality of Aibonito is 0.57…

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Q: A medical director needs to know the proportion of patients who have a single bed in their room. A…

A: It is given that sample size (n) is 200 and p-hat value is 0.59.

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A:

Q: A magazine provided results from a poll of 2000 adults who were asked to identify their favorite…

A: Given information- We have given that among the 2000 respondents, 13% chose chocolate pie. So, the…

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Q: In a survey of 323 adults over 50, 60% said they were taking vitamin supplements. Find the margin of…

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Q: (b) ample decimal places.) (a) What is the probability that x is within +$500 of the population mean…

A: (a) The probability that x¯ is within ±$500 of the population mean if a sample of size 40 is used…

Q: Jane wants to estimate the proportion of students on her campus who eat cauliflower. After surveying…

A: Solution: Given that, Estimate the proportion of students on her campus who eat cauliflower n=20 #…

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

A: Solution:There is no estimates available, hence the sample proportion is assumed to be 0.50.The…

Q: Emma wants to estimate the percentage of people who use public transportation in a city. She surveys…

A: Obtain the margin of error. The margin of error is obtained below: The formula for the margin of…

Q: A Plitical pollster wants to know what proportion of voters think james burger should go away and…

A:

Q: A recent study indicated that 24% of women over 55 are widows. A researcher wishes to estimate with…

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: A campaign staffer would like to estimate the proportion of likely voters who will vote for a…

A: From the provided information, Confidence level = 98% Margin of error = 4.2% that is 0.042

Q: The national average for the percentage of high school graduates taking the SAT is 49%, but the…

A:

Q: A researcher wants to estimate the actual proportion of citizens of a certain country who feel that…

A:

Q: About 74% of MCC students believe they can achieve the American dream and about 65% of Ferris State…

A: The provided data is,

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: A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll,…

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Q: A soft drink company surveys 500 shoppers and finds that 61% of shoppers prefer diet soda to regular…

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Q: A recent poll of 1500 new home buyers found that 60% hired a moving company to help them move to…

A: Here n = 1500. Let P = Sample proportion = 0.6 or 60% Now since n is very large and n*P > 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: At one large college, 660 out of the 1500 students surveyed said they plan to take another science…

A: Given that,   x=660,n=1500 The sample proportion is, Critical values: By using the standard normal…

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

A: Given that Critical value: Using the z-table, the critical value at 96% confidence level is

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…

Q: Melissa wants to estimate the proportion of adults in the U.S. who own a gun. To do so, she surveys…

A: Given information: Sample size of adults is 45, that is, n = 45. Number of adults who own a gun is…

Q: In studying his campaign plans, Mr. Singleton wishes to estimate the difference between men's and…

A: Given, n1 = 610 x1 = 179 n2 = 717 x2 = 425       To find, The 90% confidence interval for proportion…