2. A researcher would like to determine the political preference of the nationbefore the upcoming midterm elections. From where should the researchercollect his/her data?A. From all the voting population in the nation.B. From a sample of people living in one region.C. From a sample of people randomly chosen across the nation.D. From all the people in a randomly selected region.

Sampling: It is a process of selection of items/objects in a random way from a population. The…

Answered: 2. A researcher would like to determine…

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 club wants to sponsor a panel discussion on an upcoming election. The club wants to have four of its members lead the panel discussion. To be fair, however, the panel should consist of two members of each party. Below is a list of members in each party. Obtain a stratified sample of two people from party 1 and two from party 2. Which of the following is a possible list of club members to lead the panel discussion? A. May, Engler, Ochs, Haydra B. Haydra, Tate, May, Engler C. May, Engler, Ochs, Cooper Party 1 Nolan Party 2 Ochs D. Haydra, Tate, Carter, May Bolden Сооper Engler Keating | May Carter Pawlak Rice E. Haydra, Tate, Carter, Pawlak Нaydra Tate Thomas Lukens Wright Weber
4) You know that 70 percent of the subs at theme parks in the US are yellow. There are 220 subs in theme parks in the US. You are in a contest where you select sub names from a hat and record the name of the theme park sub. (No replacement ). You win a prize if you select a greater percentage of yellow subs than 90% of your many many competitors. What percentage of yellow subs do you need to select?
A. Identify the type of sampling technique used by the researcher in each situation. 1. The office clerk gave the researcher a list of 500 Grade 11 students. The researcher selected every 20th name on the list. 2. A researcher interviewed people from each town in the province of Leyte for his research. 3. A researcher selected a sample of n=120 from a population of 850 using the Table of Random Numbers. 4. A researcher surveyed all diabetic patients in each of the 25 randomly selected hospitals in Metro Manila 5. A researcher chose the subject of her study by selecting every kth member of the population.
1)The population of a city is made up of 2223 men and 7777 women. For an opinion survey, a STRATIFIED SAMPLING of such population was carried out, with 80 people. How many men and women, respectively, should compose the sample? justify
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?
3) A principal of a local high school wants to select 30 students from a student body of 600 students. He wants the proportion of students in each grade level to be the same in the sample as it is in the entire school. Describe how he could make a stratified sample if there are 100 freshmen, 160 sophomores, 200 juniors, and 140 seniors. Show all work. Write final answer in sentence form. o
Our local movie theater polls its customers about their favorite candy to eat during the movie. Name each sampling method described. a. Employees ask every 45th customer that purchases a movie ticket b. An employee divides the theater into sections: left, right, front, back. He/she randomly chooses a section and polls every customer within that section
Help with this question please
Please list your answers to part a, b, c, and d. Suppose you try to conduct a presidential approval poll of 5,000 likely U.S. voters. You know that 29% of the voters are registered as Republican, 34% are registered as Democrat, and 28% are registered as Independent. If you are going to construct a representative sample of this population, approximately how many of the likely voters in the sample should be: a. Republican b. Democrat c. Independent d. Notice the sum of the percents is not 100. What could account for this?
Jessica Johnson is running for mayor of a small city in Florida. She needs at least 51% of the votes to win. Her campaign wanted to predict whether or not she’s going to win. She hires five people to ask 100 randomly selected voters if they will vote for her. The results are shown in the table. Should Jessica predict that she will win? Poll Number Yes Votes 1 51 2 68 3 58 4 43 5 65 Jessica should predict that she will ["", ""] because ["", "", ""]
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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