## Questions and Answers

What is the primary advantage of stratified sampling?

It ensures the sample is representative of the population based on critical factors.

In cluster sampling, what is the unit of sampling?

Naturally occurring groups of individuals

What is a key advantage of cluster sampling?

It is administratively convenient and can save time and money.

Which of the following is NOT a form of non-probability sampling?

Signup and view all the answers

In non-probability sampling, what is true about the probability of each element being included in the sample?

Signup and view all the answers

What is the primary purpose of using Slovin's formula in sampling?

Signup and view all the answers

What is the purpose of the margin of error in research?

Signup and view all the answers

What does a 95% confidence level mean?

Signup and view all the answers

According to Slovin's formula, how does the margin of error (e) affect the sample size (n)?

Signup and view all the answers

What is the purpose of Slovin's formula in research?

Signup and view all the answers

If a population (N) is 10,000 and the desired margin of error (e) is 3%, what is the minimum required sample size (n) using Slovin's formula?

Signup and view all the answers

What is the formula used to determine the interval to be used in identifying the samples who will participate in a systematic random sampling study?

Signup and view all the answers

In the example provided, if the total population size is 1000 students and the target sample size is 50 students, what is the interval $k$ to be used in the systematic random sampling?

Signup and view all the answers

In stratified random sampling, how is the number of units drawn from each stratum determined?

Signup and view all the answers

Which of the following is a key difference between simple random sampling and systematic random sampling?

Signup and view all the answers

Which formula can be used to calculate the sample size for a given population size and desired margin of error?

Signup and view all the answers

In the context of the provided text, what is the purpose of using the lottery technique in sampling?

Signup and view all the answers