You want to interview 200 students in your school to determine their opinion on the new schooluniform. How are you going to choose your sample by using stratified sampling if there are 1,200students in Grade 7; 1,100 in Grade 8; 1,050 in Grade 9; 940 in Grade 10; 900 in Grade 11, and 810 inGrade 12?

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Answered: You want to interview 200 students in…

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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Niles wants to learn more about British accents, so he divides Great Britain into 12 regions and researches all the dialects from a random sample of 3 regions. Which of the following best describes the sampling method Niles used? Stratified Sample Simple Random Sample Voluntary Response Sample Sample of Convenience Systematic Sample Cluster Sample
local fudge company wants to make sure that the assorted pound of fudge is really 16 ounces. To test this, the 35th box is tested and then every 75th box thereafter. What kind of sampling is this?
A coach is interested in how many slam dunks the average college freshman at his university can do. Ten volunteers from the senior class step forward. After observing their performance, the coach concluded that college seniors can do an average of 10 slam dunks in a row without missing. what is the sample? what is the population?
Online Medical Info USA Today posted this question on its website: “How often do you seek medical information online?” Of 1072 Internet users who chose to respond, 38% of them responded with “frequently.” What term is used to describe this type of survey in which the people surveyed consist of those who decided to respond? What is wrong with this type of sampling method?
Gary Chalmers is giving a sample of students at Springfield Elementary School IQ tests. To select his sample, he sorts the students based on their birth date, from oldest to youngest, and selects every 32nd student starting with the 17th. What sampling method did Gary employ?
A political scientist surveys 25 of the current 116 representatives in a state's congress.What is the size of the sample: What is the size of the population:
The Ramapo College social media coordinator wants to create graduation videos to share on the College's social media account. She decides to randomly select 10 students from each of the 5 schools to feature during Arching and Graduation. What sampling method is the social media coordinator using? Group of answer choices Simple Random Sample Stratefied Sample Systematic Sample
UTAS, Nizwa has received 400 Red Markers, 600 Black Markers and 1000 Blue Markers. The college store keeper wants to check 50 samples using stratified sampling. Which of the following are the correct samples? a. 25 Red Markers, 15 Black Markers, 10 Blue Markers b. 10 Red Markers, 15 Black Markers, 25 Blue Markers c. 15 Red Markers, 15 Black Markers, 20 Blue Markers d. 10 Red Markers, 25 Black Markers, 15 Blue Markers
A political campaign wants to estimate the number of adult residents who voted in the last city election. Answer the following. (a) Which of the following surveys probably would best represent the entire adult population of the city? 50 senior residents are randomly selected; 42 voted in the last election. 50 adult residents are randomly selected from the city; 25 voted in the last election. 50 business owners are randomly selected; 38 voted in the last election. (b) There are 16,800 adults who live in the city. Using your answer from part (a), estimate the number of adults who voted in the last city election. adults
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
If you were conducting a survey to find out how many of your fellow students approved of the state providing free community college tuition, what method of sampling would you use and why?
At your favorite website, a poll asks you a series of questions about the current state of the world. The sampling technique being employed is:

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