Provide an Appropriate Response

Multiple Choice

Provide an appropriate response.
-Traditionally in hypothesis testing the null hypothesis represents the "status quo" which will be overturned only if there is evidence against it. Which of the statements below might represent a
Null hypothesis?

A) The treatment has no effect.
B) The mean temperature this decade is higher than the mean temperature over the past century.
C) The teaching method raises SAT scores.
D) The defendant is guilty.