Chapter 11 Inferences on Two Samples

Question 1

Independent Sampling Method

Answer 1

Sampling method in which the individuals selected for one sample do not dictate which individuals are to be in a second sample

Question 2

Dependent Sampling Method

Answer 2

Sampling method in which the individuals selected to be in one sample are used to determine the individuals to be in the second sample.
Also referred to as a matched-pair sample.

Question 3

Requirements for Independent Sampling

Answer 3

1. n_1 p ̂_1 (1 – p ̂_1 ) ≥ 10
   n_2 p ̂_1 (1 – p ̂_2 ) ≥ 10
2. Both sample sizes are less than 5% of the population size