Given that a directional hypothesis is a prediction made by a researcher regarding a positive or negative change, relationship, or difference between two variables of a population, a two-tailed test is the perfect tool to validate it because a two-tailed test is designed to examine both sides of a specified data range.
So the final answer to this question is:
True.
Answer: 0.05%
Explanation:
Cystic fibrosis is a genetic disease that results in the body producing thick, and sticky mucus which is abnormal.
From the question, we are informed that 1 out of every 2,000 babies born in the US have cystic fibrosis, the percentage of the above population that has cystic fibrosis will be:
= 1/2000 × 100
= 0.05%
Answer:
huh? I'm confused is this a language?
