During Which Weeks of Pregnancy Is Chorionic Villus Sampling Generally

question 7

Multiple Choice

During which weeks of pregnancy is chorionic villus sampling generally performed?

• A) 6 to 8 weeks
• B) 10 to 12 weeks
• C) 16 to 18 weeks
• D) 20 to 22 weeks
• E) 24 to 26 weeks

---

Definitions:

P-value Approach

A method in hypothesis testing that uses the p-value, the probability of obtaining test results at least as extreme as the observed, under the assumption the null hypothesis is true.

Critical Values

Specific points along the scale of a test statistic that delineate the acceptance or rejection of the null hypothesis.

Two-Tailed Hypothesis

A statistical test where the area of interest lies in both tails of the distribution, testing for the possibility of a relationship in both directions.

Level of Significance

A threshold used to decide whether a hypothesis test results are statistically significant.