Final answer:
Ties are allowed in the Kolmogorov-Smirnov test, making the statement false. In paired samples hypothesis tests, it is true that measurements come from the same pair and two sample means are compared.
Step-by-step explanation:
The statement that ties should not be present for the Kolmogorov-Smirnov test is False. The Kolmogorov-Smirnov test can handle data with ties, although ties can affect the test's power. When we perform a hypothesis test on matched or paired samples, it is true that two measurements are drawn from the same pair of individuals or objects (B), and two sample means are compared to each other (C). Therefore, answer choices B and C are both true, making option D the correct answer.