In hypothesis testing, the null hypothesis is often described as a statement of no effect or no difference. Which option below corresponds to that idea?

In hypothesis testing, the null hypothesis is often described as a statement of no effect or no difference. Which option below corresponds to that idea?

• A. It claims there is a difference
• B. It claims the alternative is true
• C. It states there is an effect
• D. It states there is no difference

Answer: (A)

The null hypothesis is a statement of no effect or no difference. The option that says there is no difference matches this idea. In hypothesis testing, you start by assuming that there is no difference (or no effect) and then see if the data provide enough evidence to reject that assumption. The other statements describe a difference or assert the alternative, which are not what the null asserts. So the correct match is the option that states there is no difference.

The null hypothesis is a statement of no effect or no difference. The option that says there is no difference matches this idea. In hypothesis testing, you start by assuming that there is no difference (or no effect) and then see if the data provide enough evidence to reject that assumption. The other statements describe a difference or assert the alternative, which are not what the null asserts. So the correct match is the option that states there is no difference.