3) Which sampling method was used if a researcher studying the annual income ofstudents selected three classrooms being used during the 11:00 AM period and askedeach student in those rooms?a) Stratified samplingc) Cluster samplingSeanfo 8484-2.28 (bb) Convenience samplingsombriod aasis ori od bund) Systematic sampling2.86-88 (5

DefinationStratified sampling:If the population is very heterogeneous and considerations of cost…

Answered: 3) Which sampling method was used if a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Which find of sampling plan was used in each of the following situations?would the plan result in an unbiased sample? A. Complaints have been made about students not sowing after physical education class at a high school. The administration is trying to decide wether to begin requiring showering. They divide the set of interest people into tree groups: teachers, students, and parents. A random sample is selected from each group and asked to fill out a brief questionnaire about the need to shower after p.e. Class. B. The managers of a large shopping mall are trying to decide wether to add another information booth to the concourse. They hire a student to stand by one door and ask the next 100 people who enter the mall wether they would like to see another information booth added to the mall and if so where?
Ideally, in stratified sampling, the members of each stratum should be ________ relative to the characteristic under consideration.
Mail carriers of a large city are divided into four groups according to gender and according to whether they walk or ride on their routes. The 10 are selected from each group and interviewed to determine whether they have been bitten by a dog in the last year. Select one: O a. Cluster sampling O b. Systematic sampling O c. Random sampling O d. Startified sampling DUS ACTIVITY 3 WS3
1. In the number {1,3,57,9} construct the following: a. List of the possible sample size of 3 that can be taken from this set of numbers. b. Sampling distribution of the sample means for the size of 3 and standard error
Do heavier cars really use more gasoline? Suppose a car is chosen at random. Let x be the weight of the car (in hundreds of pounds), and let y be the miles per gallon (mpg). x 30 43 29 47 23 40 34 52 y 29 21 26 13 29 17 21 14 Complete parts (a) through (e), given Σx = 298, Σy = 170, Σx2 = 11,788, Σy2 = 3894, Σxy = 5927, and r ≈ −0.922. (c) Find x, and y. Then find the equation of the least-squares line = a + bx. (Round your answers for x and y to two decimal places. Round your answers for a and b to three decimal places.) x = y = = + x (e) Find the value of the coefficient of determination r2. What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? What percentage is unexplained? (Round your answer for r2 to three decimal places. Round your answers for the percentages to one decimal place.) r2 = explained % unexplained % (f) Suppose a car weighs x = 40 (hundred pounds). What does…
A. In each of the following situations, a random sample must be obtained. Determine whether a cluster, stratified, or systematic random sampling would be appropriate. Explain in detail how the sampling is to be conducted. Do not discuss expected results or conclusions. A large convenience store chain wishes to determine its customers’ level of satisfaction with regard to their service. A nationwide survey on charter change is to be conducted. (Note: there are seventeen regions in the Philippines.) An educational researcher wants to compare the difference in career goals between male and female students of Otto Hahn University who has 10,000students. A social researcher wants to determine whether electronic engineers who work in the communications field earn more than those who are in the semiconductor industry. A market analyst would like to compare the durability, in terms of mean time before wear, of two leading brands of car tires. B. The numbers of incorrect answers on a true or…
30) Which among the following statement is true about the sampling method chosen here? a. This method is also known as judgement sampling b. It is a probability sampling method c. This method is based on the judgement of the researcher d. It is a non- probability sampling method
How many 4-letter code words can be made using the letters in the word pencil if repetitions are permitted? If repetitions are not permitted? Topic: Sampling
A market reseacher selects 500 drivers under 30 years of age and 500 drivers over 30 years of age. Which of these sampling is used?
Which of the following sampling methods will likely produce a sample that is biased and not representative of the population? A) Volunteer sampling B) Cluster sampling C) Simple random sampling D) Stratified sampling
1. Compare and contrast each of these sampling methods. Give examples for each one of them. a. cluster sampling b. stratified sampling c. snowball sampling

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS