I already know the right answers, please show me the process of how the answers
ID: 3307050 • Letter: I
Question
I already know the right answers, please show me the process of how the answers where achieved ( show work)
51. Which of the following sampling methods is a probability sample?
chunk.
quota sample.
stratified sample.
judgement sample.
52. For a population frame containing N = 1,007 individuals, what code number should
you assign to the first person on the list in order to use a table of random numbers?
0
1
01
0001
-10-
53. The Dean of Students mailed a survey to a total of 400 students. The sample included
100 students randomly selected from each of the freshmen, sophomore, junior, and
senior classes on campus last term. What sampling method was used?
a. simple random sample.
b. systematic sample.
c. stratified sample.
d. cluster sample.
54. A telemarketer set the company’s computerized dialing system to contact every 25th
person listed in the local telephone directory. What sampling method was used?
a. simple random sample.
b. systematic sample.
c. stratified sample.
d. cluster sample.
55. A population frame for a survey contains a listing of 6,179 names. Using a table of
random numbers, which of the following code numbers will appear on your list?
a. 06
b. 0694
c. 6946
d. 61790
56. If a simple random sample is chosen with replacement, each individual has the same
chance of selection on every draw.
TRUE FALSE
57. The only reliable way a researcher can make statistical inferences from a sample to a
population is to use nonprobability sampling methods.
TRUE FALSE
58. Sampling error can be reduced by taking larger sample sizes.
TRUE FALSE
59. Selection bias occurs more frequently in systematic samples than in simple random
samples.
TRUE FALSE
Explanation / Answer
Ans:
51)Option c is correct.
Stratified sample
52)0001
Option d is correct.
53)Option c is correct.
Stratified sample
Stratified sampling refers to a type of sampling method . With stratified sampling, the researcher divides the population into separate groups, called strata. Then, a probability sample (often a simple random sample ) is drawn from each group.Stratified sampling has several advantages over simple random sampling.
54)Option b is correct.
Systematic sample:
Systematic sampling is a type of probabilitysampling method in which sample members from a larger population are selected according to a random starting point and a fixed periodic interval. This interval, called the sampling interval, is calculated by dividing the population size by the desired sample size.
56)True
57)False
58)True(taking larger sample sizes,margine of error reduces)
59)true(As in systematic sampling,population may already be in some fixed pattern and we may not reshuffle it always,so it will cause biasing)
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.