A Factory Has 20 Assembly Lines Producing a Popular Toy

question 2

Multiple Choice

A factory has 20 assembly lines producing a popular toy. To inspect a representative sample of 100 toys, quality control staff randomly selected 5 toys from each line's output. Was this a simple random sample?

• A) Yes, because the toys were selected at random.
• B) Yes, because each toy produced had an equal chance to be selected.
• C) No, because toys do not come off the assembly line at random.
• D) No, because not all combinations of 100 toys could have been chosen.
• E) Yes, because a stratified sample is a type of simple random sample.