A sample of 272 adults is selected. The adults are classified according to voter registration status ("registered" or "not registered"). They are also classifiedaccording to preferred source of current events information ("television", "newspapers", "radio", or "internet sites"). The results are given in the contingencytable below.TelevisionNewspapersRadioInternet sitesRegistered15343326Not registered42454136Among the adults in the sample who prefer to obtain their information through television, what is the relative frequency of those who are not registered to voteRound your answer to two decimal places.

The totals of given contingency table is calculated as,

Answered: A sample of 272 adults is selected. The…

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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The table below shows the results of a survey that asked 1044 adults from a certain country if they favored or opposed a tax to fund education. A person is selected at random. Complete parts (a) through (c). Support Oppose Unsure Total Males 151 319 13 483 Females 237 305 19 561 Total 388 624 32 1044
1 The Blue Tide High School Student Committee has 5 members. They would like to conduct a survey to get the students’ opinion on the school’s new bell schedule. They asked 23 students’ representatives to distribute a questionnaire to the schools’ 1550 students. In the end, they received 750 responses. They wrote a report based on the information provided by the respondents. 2) which number represents the size of the sample?
Use the counting principal to determine the number of elements in the sample space. The possible ways to complete a true/false examination consisting of 29 questions
A new restaurant has been open for three months and wants feedback from its customers. They plan to give a survey to every 5th customer. Census or Sampling method: Answer Collection method: Answer A dog food claims to make dogs coats shiner and healthier looking. A researcher wants to test the claims. They plan to randomly select pet store shoppers to participate and assign them to two groups. Census or Sampling method: Answer Collection method: Answer The Department of Homeland Security wants to test a computer virus that it has developed to combat hackers. They plan to test run the virus on randomly selected computers with pre-set "hacker" programs. Census or Sampling method: Answer Collection method: Answer
Find the mode of the following number of states randomly selected travelers at a service plaza visited in the past three years. 18,13,8,8,13,10,13,10,9,18.
A state official wants to know which party the voters in his state feel is best qualified to lead the country over the next 10 years. He mails a questionnaire on this subject to an SRS of 1600 voters in his state. His staff reports that 325 questionnaires have been returned, of these 241 respondents feel the Democratic Party is best qualified to lead the country over the next 10 years. Question: Please tell us: a) Population b) Sample

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