An Experiment Is Conducted to Investigate the Effects of Three

Multiple Choice

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