18. Suppose a researcher conducts a study on the relationship between hoursof exercise per week and grade point average at a certain university. To besure to get an equal number of men and women in the sample, theresearcher divides the population into men and women and then randomlyselects 200 men and 200 women for the study. What sampling techniquedid the researcher use?A. Simple Random SamplingProportional Stratified Random SamplingStratified Random SamplingВ.C.D.Convenience Sampling

Answered: Image /qna-images/answer/a6db5af5-d9b9-4078-83b6-3b29749300c5.jpg

Answered: 18. Suppose a researcher conducts 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

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determine what type of sampling technique is used (Simple Random Sampling, Stratified Random Sampling, Systematic Sampling, Cluster Sampling, or Convenience Sampling). 5. A researcher wants to select ten students for a survey. Each student’s name is placed in a hat and 10 names are selected.
Calculate the margin of error. What does the article state as the margin of error?
From a population of 300 you are going to select 50. Using the systematic sampling technique where 5 is the random start, what is the 4th sample unit?
A biologist wants to determine if different temperatures (15oC, 25oC, or 35oC) and amounts of sunlight (partial or full) will affect the growth of plants. He will test each combination of temperature and sunlight by randomly assigning 15 plants to each of the combinations. What type of sampling is described in this study? one sample paired data two samples more than two samples
Match the sampling scheme to an example of that type of sampling. Group of answer choices Simple Random Sample (SRS), without replacement Simple Random Sample (SRS), with replacement Stratified Cluster Systematic Voluntary Response Judgment AC Randomly selecting a group or small…
Data Management - Organization of Data for analysis
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?
A farmer wants to know whether or not the sizes of Christmas trees differ between two separate fields on opposite sides of the farm (different elevation). In order to test this, he plants a number of trees in each field and measures them all after 2.5 years of growth. He then takes a random sample from each field and this is what he found: Group 1: Higher Elevation, N=25, Mean=3.3 ft, S=0.55 ft Group 2: Lower Elevation, N=23, Mean= 3.1, S=0.45 ft Please calculate the test statistic and pvalue. What can be concluded? Support your answer. Please calculate the 95% confidence interval Interpret the interval. What can be concluded? Support your answer.
In a school, the students were classified according to the following departments. Classification Number of students Criminology Dep’t 210 Health Dep’t 63 Social Work Dep’t 55 Educ. Dep’t 72 Determine the sample size with 5% margin of error using Slovin’s/Yamane’s formula and Cochran’s formula Determine the number of respondents per group/stratum based on Slovin’s or Cochran’s.
A real estate agent wishes to determine whether tax assessors and real estate appraisers agree on the values of homes. Random sample of the two groups appraised 10 homes. The data are shown here. At a = 0.05, is there a significant difference in the values of the homes for each group? (c) Real estate appraisers Tax assessors x1 = RM 83,256 S1 = RM 3,256 n, = 10 x2 = RM 88,354 S2 = RM 2,341 %3D n2 = 10
Identify which of these types of sampling is used: random, stratified, systematic, cluster, convenience. Professor Cuellar uses a computer to generate 20 random student ID numbers, then interviews the students corresponding to those numbers.

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