Question:

Answer: a) It is always more informative by investigating a sample than the entire population

Question:

Answer: d) frame.

Question: To obtain a sample of 10 books in the store, the manager walked to the first shelf next to the cash register to pick the first 10 books on that shelf. This is an example of a

Question 3 options:

a) stratified sample.

b) simple random sample.

c) convenience sample.

d) systematic sample

Answer: c) convenience sample.

Question:

Answer: c) All students in a class are divided into groups of 15. One student is randomly chosen from the first group, the remaining observations are every 15th student thereafter.

Question:

Answer: b) All students in a class are grouped according to their gender. A random sample of 8 is selected from the males and a separate random sample of 7 is drawn from the females.

Question:

Answer: d) All students in a class are divided into groups according to the rows in which they are seated. One of the groups is randomly selected.

Question:

Answer: c) The names of 50 students in a class are written on 50 different pieces of paper and put in a hat. The first 15 pieces of paper are selected blindly one at a time without replacing them back in the hat after shuffling the papers thoroughly.

Question: If a simple random sample is chosen with replacement, each individual has the same chance of selection on every selection.

Question 8 options:

a) True

b) False

Answer: a) True

Question: Sampling error can be completely eliminated by taking larger sample sizes.

Question 9 options:

a) True

b) False

Answer: b) False

Question: Sampling distributions describe the distribution of

Question 10 options:

a) parameters.

b) statistics.

c) both parameters and statistics.

d) neither parameters nor statistics.

Answer: b) statistics.