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
Complex Linguistic Patterns
Crystal structures of SecY complex in “closed” and “open” conformations
Structure and swinging arm mechanism in the mammalian fatty acid synthase complex
Ternary complex between FdUMP, 5,10-methylene THF and thymidylate synthase
The nurse begins the general survey
Consider the production function ( ) 0.5 0.5 Y = AK L . Suppose both saving rate (s) and the ...