send six people to a national convention, and it would like to send four students ane faculty members. Of the 30 students, four are selected randomly. Two faculty mer are randomly selected from the six. This is an example of: a. simple random sampling. b. stratified random sampling. c. voluntary response sampling. d. a census.

send six people to a national convention, and it would like to send four students ane faculty members. Of the 30 students, four are selected randomly. Two faculty mer are randomly selected from the six. This is an example of: a. simple random sampling. b. stratified random sampling. c. voluntary response sampling. d. a census.

Name: 2. A small math department has six faculty members and 30 students. T
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Description: 2. A small math department has six faculty members and 30 students. The department cansend six people to a national convention, and it would like to send four students and twofaculty members. Of the 30 students, four are selected randomly. Two facul

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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20. Laura wants to determine if the 7 grade class wants to go on a field trip to an art museum, a concert, or a sporting event. Which sampling method would likely provide a representative sample of the population? A. Survey every fifth 7h grade student as Laura arrives at school because it gives each seventh-grade student an equal opportunity to be a part of the survey. B. Survey every fifth student as Laura arrives at school because it gives each student in her school an equal opportunity to be a part of the survey. C. Survey every member of the art club because they would likely know why it would be more fun to visit an art museum. D. Survey all the 7th grade athletes because they would likely know why it is more fun to go to the sporting event.
A teacher has 36 students who are sitting in 6 rows of 6 desks. He wants to survey the students about the homework policy. Which of the following uses cluster sampling? Randomly assign the students to desks, and number the students 01-36. Use a random number table to generate a sample of students. O Randomly assign the students to desks. Number the rows 1 to 6. Use a random number table to select a number from 1 to 6, then survey every student in that row. List all of the students alphabetically. Survey the 2nd person (with the number 2 being randomly chosen), then survey every 5th student after that. OList all of the students alphabetically. Survey 1 randomly chosen student whose last name begins with A, then continue the process through the alphabet.
A child has an enormous jar in which she has been saving all of her spare change. In order to determine exactly how much money she has in the jar, she dumps all of the coins on the floor and counts them. Under the watchful eye of her mother, she counts 180 pennies, 120 nickels, 100 dimes, and 80 quarters. The data collection method used in this example is called Select one: a. none of these b. random sampling. C. a controlled study. d. e. a census. a survey.
A high school administration wants to collect data onthe amount of time the students use computers. Thereare 1200 students in the school, and they have beenassigned to 40 different homerooms, 10 homeroomsper grade 9–12, with 30 students in each homeroom.The administration wants a sample of 120 students.a) Describe a method to select a simple random sampleof students.b) Describe a method to select students using a stratifiedsample.c) Describe a method to select students using a clustersample.d) Describe any advantages or disadvantages in usingthe stratified or the cluster sampling method here.
g) The Lady Tasting Tea Experiment. An English lady, Muriel Bristol, claimed that she can tell whether tea or milk was added first to a cup. So as a researcher, you want to test whether she can really tell whether tea or milk was added first. But how would you do it? A possible research design: Give her eight cups, four where tea is added first and the other four where milk is added first, in random order. Then ask her to pick out the four cups where the milk is added first. After you conducted the experiment and collected the data, how do you decide whether she can truly tell the difference or she was just guessing. Our intuition tells us that the more cups she gets correctly, the more likely that she is NOT guessing. "If the Lady is just guessing, the probability of getting it all correctly is 1.4%." Now using your knowledge on combinatorics and probability, explain how this number was calculated? h) Suppose you flip four fair coins. What is the probability that you will get all…
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.
Chemistry grades 2A are Brown 70, John 85, Christ 99, Ryan 56, Dovy 87, Megan 48, Zory 77, Vroy 65, Hyu 88, and Sue 86. If 6 samples are taken, what is the sampling error? is error in sampling still tolerable?
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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…
Identify the sampling method (simple random sampling, systematic sampling, convenience sampling, or stratified sampling) in the following studies a. You split the population into faculty and students and then choose a random sample from each. b. You assign each member of the population a number and choose the sample using a computer program that randomly picks numbers. c. You ask every 3rd person who walks into the store to complete a survey.
Determine the sampling method used in the following situation: A political party wants to know the reaction of voters to a debate between the candidates. The day after the debate, the party's polling staff used a statistical software to generate 1,300 phone numbers. The staff called the numbers, and if a registered voter answers the phone, or is available to come to the phone, that registered voter is asked whom they intend to vote for, and whether the debate changed their opinion of the candidates. Simple Random Sampling Systematic Sampling SUBMIT QUESTION SAVE PROGRESS All folders are up to date 70 Connected to: Microsoft Exchange SUBMIT ASSI