Non probability sampling techniques such as convenience and quota sampling suffer from selection bias
Week Four Quiz >>> Non probability sampling techniques such as convenience and quota sampling suffer from selection bias >>> Probability and Statistics: To p or not to p?
1.
Question 1
Non-probability sampling techniques, such as convenience and quota sampling, suffer from selection bias.
1 point
False
=========================================
2.
Question 2
Response bias is an example of:
1 point
sampling error
non-sampling error
=========================================
3.
Question 3
A sampling frame is required for:
1 point
probability sampling
non-probability sampling
=========================================
5.
Question 5
In stratified random sampling, elements between strata should be:
1 point
as heterogeneous as possible
as homogeneous as possible
=========================================
4.
Question 4
In systematic sampling, the sampling interval, ii, is:
1 point
n/N
N/n
=========================================
6.
Question 6
A sampling distribution is the:
1 point
probability (frequency) distribution of a parameter
probability (frequency) distribution of a statistic
=========================================
7.
Question 7
An unbiased estimator has its expected value equal to the:
1 point
parameter being estimated
statistic used as the estimator
=========================================
8.
Question 8
An xx% confidence interval covers the unknown parameter
1 point
with xx% probability over repeated samples
with a probability of xx%
=========================================
8.
Question 8
Confidence intervals convert:
1 point
interval estimates into point estimates
point estimates into interval estimates
=========================================
10.
Question 10
Other things equal, as the sample size nn increases the margin of error:
1 point
decreases
stays the same
increases
=========================================
2.
Question 2
Selection bias is an example of:
1 point
sampling error
non-sampling error
=========================================
3.
Question 3
In probability sampling:
1 point
there is a known, non-zero probability of a population element being selected
some population elements have a zero probability of being selected, while others have an unknown probability of being selected
=========================================
1.
Question 1
Quota sampling requires quota controls.
1 point
True
False
=========================================
6.
Question 6
We use a statistic (called an estimator) calculated from sample observations to provide a point estimate of a:
1 point
parameter
random variable
=========================================
9.
Question 9
Which of the following does not influence the size of the margin of error when considering the confidence interval for a population mean?
1 point
the sample size, n
the sample mean, xˉ
the confidence level
=========================================
10.
Question 10
Other things equal, as the confidence level increases the margin of error: