In proportionate stratified sampling, the size of each stratum is the basis for allocating the total sample across the population strata.
a. True
b. False
Question 2In proportionate stratified sampling, after the total sample is allocated, a simple random sample is chosen from each subpopulation to create the total sample.
a. True
b. False
Question 3Stratified samples are most appropriate when the population is known to be skewed..
a. True
b. False
Question 4Calculation of the skip interval is important in which sampling plan?
a. Simple random sample
b. Systematic sample
c. Skip sample
d. Cluster sample
e. Convenient sample
Question 5If we were to ask college students To what extent do they value a college degree? which type of sample plan would be most appropriate?
a. Any probability sampling plan would be useful.
b. A stratified sample because we would expect the answers to vary by strata: freshmen, sophomore, junior, and senior.
c. A cluster sample because we would expect the answers to vary by cluster: freshmen, sophomore, junior, and senior.
d. An area sample because we would expect the answers to vary by area: freshmen, sophomore, junior, and senior.
e. None of the above would be appropriate. In fact, it would be best to use a nonprobability sampling technique.
Question 6Jane Doe wants to administer a short survey on student driving habits to a representative sample of students at the local university. She secured a list of students from the student directory. She assigned each student a unique number and then used a random number table to select her sample. Jane Doe is most likely using a
a. quota sample technique.
b. probability sampling technique.
c. cluster sample technique.
d. statistical inference.
e. judgment sampling technique.
Question 7PGA conducts a study in which they use a simple random sample of 600 golfers. They examine the data from the sample and calculate that 28 of them own golf clubs made in the USA. The 28 is the
a. average handicap of these golfers.
b. sample statistic.
c. population mean for all golfers.
d. population parameter.
e. None of the above.
Quick Reply
