Final answer:
In the use of matched pairs for appraisals, one sale must include the feature in question and the other must not, to isolate the effect on price. For hypothesis tests on paired samples, it's crucial that both measurements come from the same pair and that two sample means are compared. Answers B and C of the given choices are true.
Step-by-step explanation:
If an appraiser is using the technique of matched pairs, one sale must contain the item for which the adjustment is being sought and the other sale must not contain that adjustment item. This approach is used to isolate the effect of a single characteristic on the sale price by comparing two otherwise similar properties.
When we perform a hypothesis test on matched or paired samples, it's important to know that:
- Two measurements are drawn from the same pair of individuals or objects.
- Two sample means are compared to each other.
Therefore, the correct answers for performing a hypothesis test on matched or paired samples are that two measurements are drawn from the same pair, and two sample means are compared to each other, thus making answer choices B and C both true.