The Correct Argument for Using a Two-Tailed Test,even If There

question 2

Multiple Choice

The correct argument for using a two-tailed test,even if there is a clear basis for predicting a result in a given direction,is that

• A)if the null hypothesis is in fact true,rejecting it will provide stronger evidence in support of it.
• B)one-tailed tests cannot be used in most studies involving one or two groups.
• C)if an unexpected result that is opposite of what is predicted occurs,it does not have to be ignored.
• D)a two-tailed test improves the chance of getting a statistically significant result.