Question

3. Determine which sampling (simple random, stratified, cluster, systematic, or convenience) is used in the following situation:
a. If we have a population of 100 elements and we want a sample of 50 elements, first of all, we establish the selection interval that will be equal to 5. If we choose the first element, randomly taking a number between 1 and 5, and, at from it we obtain the remaining elements of the sample.

8. Identify if the following situation arises at the nominal, ordinal, interval or ratio level: Criticisms of plays on a scale of 0 to 5 stars.

9. Identify if the following situation arises corresponds to the nominal, ordinal, interval or ratio level: The distance from a student's home to school

Answer 1

a)

In stratified sampling, population is first divided into groups and then select some sample from each group.

Here we have divided population into interval of 5 and then select random sample.

b)

ordinal

As we have given the ratings where order matters because 1 can be good and 5 can be worse.

c)

Ratio

Distance can be used for any statistical analysis and can take the value zero.

Please revert back in case of any doubt.

Please upvote. Thanks in advance.