The table below shows the result of a national election along with the vote predicted by several organizations before the election. The percentages for each poll de not sum to 100 because of voters who indicated they were undecided. Complete parts a and b below. Jones Smith Other Poll/Candidate 47 49 2. Newspaper poll Television poll Actual vote 45 44 47.1 48.6 3.3 a. Find the approximate margin of eror for a sample size of 1250. N (Type an integer or a decimal. Round to the nearest tenth as needed.)

The table below shows the result of a national election along with the vote predicted by several organizations before the election. The percentages for each poll de not sum to 100 because of voters who indicated they were undecided. Complete parts a and b below. Jones Smith Other Poll/Candidate 47 49 2. Newspaper poll Television poll Actual vote 45 44 47.1 48.6 3.3 a. Find the approximate margin of eror for a sample size of 1250. N (Type an integer or a decimal. Round to the nearest tenth as needed.)

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Description: The table below shows the result of a national election along with the vote predicted by several organizations before the election. The percentages for each poll donot sum to 100 because of voters who indicated they were undecided. Complete parts a

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A poll in Canada states that 67% of all respondents favor imposing the death penalty. The poll was considered accurate within 4.7 percentage points 95% of the time. How large was the sample size? Round up to the nearest whole number.
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You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 90% confident that the sample percentage is within 4.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing known about the percentage of passengers who prefer aisle seats. n= 335 (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 38% of air passengers prefer an aisle seat. (Round up to the nearest integer.)
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You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 95% confident that the sample percentage is within 5.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 33% of air passengers prefer an aisle seat. n3= (Round up to the nearest integer.)
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 90% confident that the sample percentage is within 5.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 38% of air passengers prefer an aisle seat. (Round up to the nearest integer.)
You want to gather some data about students at a local high school. Match the name of the sampling method with the description of corresponding situation. Situations Selecting five classroom numbers at random then surveying all the students in each of these five rooms Surveying every 3rd driver coming through a tollbooth Pulling 50 names from a hat Sampling Method a. Cluster b. Simple Random c. Systematic d. Convenience e. Stratified
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You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 95% confident that the sample percentage is within 1.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. n= (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 38% of air passengers prefer an aisle seat. @ 2 S n= (Round up to the nearest integer.) x дв nd # 3 E D BO C $ R F V 5 T G 6 B Y H 7 N *99 U J . 8 DHE I M ( 9 K be O O L 1 P command Time Remaining: 01:09:52 > ; I { [ option ? | . Next 1 delete