A towns' candidate for mayor wants to determine what percentage of likely voters will vote for him with 90% confidence.  The candidate wants a maximum margin of error of 3%.  Determine the sample siz

The school librarian wants to determine how many students use the library on a regular basis.  What type of sampling method would she use if she chose to select every 3rd student who enters the library on Tuesday.

The city of Raleigh has 7,900 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 550 randomly selected registered voters was conducted. 270 said they'd vote for Brown, 266 said they'd vote for Feliz, and 14 were undecided.Give the sample statistic for the proportion of voters surveyed who said they'd vote for Brown. Round your answer to four decimal places. ------------  This sample statistic suggests that we might expect ----------- of the 7,900 registered voters to vote for Brown.

The city of Raleigh has 6,800 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 400 randomly selected registered voters was conducted. 127 said they'd vote for Brown, 259 said they'd vote for Feliz, and 14 were undecided. Give the sample statistic for the proportion of voters surveyed who said they'd vote for Brown. Round your answer to four decimal places. This sample statistic suggests that we might expect of the 6,800 registered voters to vote for Brown.

An architecture firm has been contracted to remodel a city's courthouse. The firm has a proposal and wants to gauge the opinion of the 475,000 people who live in the city on the design. The firm mails a survey to a random sample of 260 people who live in the city. The survey shows a picture of the firm's proposed design and asks this question. Do you like or dislike our proposed design for remodeling the city's courthouse? From the sample, the firm received 10 responses. Of the responses,70% said they liked the design. (a)Identify and describe the most prominent source of bias in the firm's study. Choose the best answer from the choices below. The bias come

Felicia is conducting a survey to determine the determine the favorite TV show among her community.Which sampling method would most likely provide a representative sample of the community?

The city of Raleigh has 7200 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 200 randomly selected registered voters was conducted. 119 said they'd vote for Brown, 76 said they'd vote for Feliz, and 5 were undecided.   Give the sample statistic for the proportion of voters surveyed who said they'd vote for Brown. Note: The proportion should be a fraction or decimal, not a percent.

As part of a sixth-grade class project the teacher brings to class a large jar containing 200 gumballs of two different colors: red and green. Andy is asked to draw a sample of his own choosing and estimate the number of red gumballs in the jar. Andy draws a sample of 25 gumballs, of which 21 are red and the rest are green. Use Andy's sample to estimate the number of red gumballs in the jar. Answer:

The city of Raleigh has 8200 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 350 randomly selected registered voters was conducted. 132 said they'd vote for Brown, 199 said they'd vote for Feliz, and 19 were undecided. Give the sample statistic for the proportion of voters surveyed who said they'd vote for Brown. Note: The proportion should be a fraction or decimal, not a percent. This sample statistic suggests that we might expect of the 8200 registered voters to vote for Brown.

In a random sample of 100 voters, 52 said they planned on voting for the Republican presidential candidate. On election day, 51% of voters actually voted for the Republican presidential candidate. Identify the value of the sample proportion. Identify the value of the population proportion