A polling organization has been hired to conduct a survey to determine the proportion of people who are likely to support an upcoming ballot initiative. To help determine the size of the sample required for the main poll, a preliminary poll of 20 people is taken that yields the results below. (Yes indicates that the person will support the initiative, No indicates that they won't.)   YesYesNoNoNoYesYesYesYesYesYesNoNoYesYesNoYesYesNoNoYesNoYesNoYesYesYesYesYesYesNoYesYesYesNoNoYesNoNoNo   Based on the results of the peliminary poll, how large a sample is required for the main poll, assuming that the main poll should have a margin of error of 3% and a confidence level of 97.8%. Sample Size =

Q: For an opinion on bicycle racks, which segments of the school population would you sample? o…

A: For an opinion on bicycle racks, which segments of the school population would you sample?

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Q: According to The Census Bureau, 60% of adults buy clothing online. a) How many adults did they…

A: Solution: a. From the given information, p=0.60 and E=0.03. The confidence level is 0.95.

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Q: Give the sample statistic for the proportion of voters surveyed who said they'd vote for Brown

A:

Q: 3) How many people would you need to poll to get a margin of error of ±2.3%?

A: Let's assume number of people to 1000. Then the margin error of ±2.3%.

Q: The student population at Illinois College is 3699.Full-time students are recorded to be 1199,while…

A: Step-by-step process:Calculate the proportions of females and males in the population:Proportion of…

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A: Borda count method follows the monotonicity criterion.  monotonic means if a candidate is a winner…

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A: Given: Total population of NM(n) = 2.097 million = 2097000 Population of Dona Ana county (x)= 218185

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A: Given problem Given that

Q: (c) Construct and interpret a 90% confidence interval for the population proportion of adults in the…

A:

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A: The sample size (n) is 13 and p = 0.30.

Q: The city of Frederick has 9432 registered voters. There are two candidates for the city council in…

A: Solution-: The city of Frederick has 9432 registered voters. The day before the election, a…

Q: What is the size of the sample:  What is the size of the population:

A: A political scientist surveys 30 of the current 129 representatives in a state's legislature.

Q: ) How many people would you need to poll to get a margin of error of ±4.8% ?

A: Let's take number of people as 1000. The margin error is ±4.8%.

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A: Solution-: We have given following table:   Support Oppose Unsure Total Males 157 330 12 499…

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Q: Minnesota had the highest turnout rate of any state for the 2016 presidential election.† Political…

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Q: A polling organization contacts 1620 undergraduates who attend a university and live in the United…

A: We have given the following statementA polling organization contacts 1620 undergraduates who attend…