QUESTION 7The principal of Angel Grove High School would like to determine whether or not the studentswould be interested in an assembly featuring a mixed martial arts demonstration. Since there are40 homerooms in the school, the principal selects a random sample of 8 homerooms to visit andasks all students in those selected homerooms whether or not they'd be interested in such anassembly. What type of sample did the principal take?O Stratified SamplingO Cluster SamplingO Voluntary Response SamplingO Systematic SamplingO Simple Random SampleO Convenience SamplingO Quota Sampling

Given that, the principal of Angel Grove High School would like to determine whether or not the…

Answered: QUESTION 7 The principal of Angel Grove…

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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On election day, a local TV news organization stayed at three polling locations in Fairfield county and asked voters whether they voted for candidate A in the election for the US Senate seat. The ’yes’ responses they got were 520 out of 945, 475 out of 865, and 485 out of 980 in the three different locations. They aggregated the sample data into 1480 out of 2790 and after the 8pm close of the election reported their sample results to viewers. a) Go through the steps of a significance test to determine whether or not candidate A won the election. b) Based on the above sample data, at 8:01pm the news organization reported their estimate of the percentage of votes candidate A received and the margin of error of their poll. Calculate these numbers. They then aired their prediction that candidate A won the election. Discuss any concerns you have with their decision to report their prediction.
Suppose you are the president of the student government. You wish to conduct a survey to determine the student body's opinion regarding student services. The administration provides you with a list of the names and phone numbers of the 707 registered students. (a) Discuss a procedure you could follow to obtain a simple random sample of 5 students.
A community college has 7663 students currently enrolled in classes. To gain the students' opinions about an upcoming building project, the college president wishes to obtain a simple random sample of 8 students. He numbers the students from 1 to 7663. Complete parts (a) and (b) below. Click the icon to view the random number table. (a) Using the provided random number table, the president closes his eyes and drops his ink pen on the table. It points to the digit in row 2, column 4. Using this position as the starting point and proceeding downward, determine the numbers for the 8 students who will be included in the sample.
An online university wants to invest in a new tutoring program. Before they make the commitment, the research team wants to know how many students enrolled in the university would actually use the tutoring program. They decided to conduct a survey to find out. The institution has 4,000 undergraduate students. How many students would you survey? How would you choose them? (Be specific in your sampling method description) Adam got the name of all 4,000 students in the university and put their names in a hat. He then drew 300 names. What do you think of Adam’s survey? Explain your answer. Sarah asked all currently enrolled seniors. What do you think of Sarah’s survey? Explain your answer.
Homework 7.2 1. Four students are randomly selected from an algebra class and asked whether they suffer from math anxiety. Find the sample space for the possible outcomes of the survey using a tree diagram.
Answer Task A only
A researcher wants to survey 2000 Americans for an obesity study. Match the strategies to their corresponding sampling techniques. The researcher posts the survey on the Internet the survey question and waits until 2000 people have responded. The researcher picks 20 different small groups:a church group a Democrat club a student club etc. each containing 100 people. Then the researcher makes sure that everyone from each group answers the survey question. The researcher gets the complete list from the Census Bureau and surveys every 1500th person on the list. The researcher makes sure that the proportion of respondents from each state matches the proportion of each state's population to the US population. The researcher gets the complete list from the Census Bureau and uses a computer to randomly select 2000 people. Stratified Sampling Systematic Sampling Cluster Sampling Convenience Sampling Simple Random Sampling
A community college employs 87full-time faculty members. To gain the faculty's opinions about an upcoming building project, the college president wishes to obtain a simple random sample that will consist of 9 faculty members. He numbers the faculty from 1 to 87. Complete parts (a) and (b) below. Question content area bottom Part 1 (a) Using the provided random number table, the president closes his eyes and drops his ink pen on the table. It points to the digit in row 3, column 6. Using this position as the starting point and proceeding downward, determine the numbers for the 99 faculty members who will be included in the sample. The numbers for the faculty members are 60, 14, 72, 52, 40, 23, 28, 36, 54. (Use a comma to separate answers as needed.) Part 2 (b) The president uses technology to produce the following random numbers. 78 74 59 87 17 74 16 8 4 70 Determine the numbers for 9 faculty members who will be included in the sample. The numbers for the…
In a poll of 1000 randomly selected voters in a local election, 701 voters were against fire department bond measures. What is the sample proportion
For a group of 20 students taking a PSDTF test, the mean heart rate was 96 beats per minute, and the standard deviation was 5. Find the 95% confidence interval of the true mean.
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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