Question

1. For each of the following questions, state the two competing hypotheses (H₀ and H₁) to be tested using words.

a. A company designs a program aimed at helping people stop smoking. They design a study aimed at testing the program.

b. Will students who are taught effective learning skills perform better on tests than students who are offered incentives to do well?

Answer 1

Here, we have to write the null and alternative hypotheses for the given research scenarios. The required null and alternative hypotheses are given as below:

Part a

Null hypothesis: H0: A program designed by company does not help people to stop smoking.

Alternative hypothesis: Ha: A program designed by company helps people to stop smoking.

Part b

Null hypothesis: H0: There is no significant difference in the performances on tests for the groups of students who are taught effective learning skills and who are offered incentives to do well.

Alternative hypothesis: Ha: The group of students who are taught effective learning skills are performed better than the group of students who are offered incentives to do well.