Suppose you want to survey the opinions of the residents of an ...

[haleyc112]

Suppose you want to survey the opinions of the residents of an apartment complex. The complex contains 100 buildings, each with 8 units per building, for a total of 800 units. You decide to sample 160 of the units. Suppose you start at a random starting point, and select every 5th unit to be in your sample, until you sample 160 units. What sampling method did you use?
 a. A systematic sample.
  b. A stratified sample.
  c. A cluster sample.
  d. A simple random sample

Question 2

Suppose you want to survey the opinions of the residents of an apartment complex. The complex contains 100 buildings, each with 8 units per building, for a total of 800 units. You decide to sample 160 of the units. Suppose 50 of the buildings (400 total units) are for singles, and 50 buildings (400 units) are for non-singles. You randomly select 80 single units and then you randomly select 80 non-single units. What sampling method did you use?
 a. A systematic sample.
  b. A stratified sample.
  c. A cluster sample.
  d. A simple random sample

[matt]

Answer to Question 1

A

Answer to Question 2

B