An experiment is conducted to investigate the effects of three different doses of a drug low, medium, high) on reaction time. The null hypothesis is that
A) The low dose leads to faster reaction times
B) The high dose leads to faster reaction times
C) There is no difference between the reaction times associated with the three doses
D) There is a difference between the reaction times associated with the three doses

Question

Quizplus · Accepted Answer

The null hypothesis typically states that there is no difference between groups or conditions being compared. In this case, the null hypothesis is that there is no difference in reaction times associated with the three different doses of the drug. Therefore, option C is the correct answer.

An Experiment Is Conducted to Investigate the Effects of Three