What is the consequence of a type ii error? a) concluding that a treatment has an effect when it really does. b) concluding that a treatment has no effect when it really has no effect. c) concluding that a treatment has no effect when it really does. d) concluding that a treatment has an effect when it really has no effect

c)

Explanation:

A type II error refers to the non-rejection of a false null hypothesis (also known as a "false negative" finding or conclusion). This means that the null hypothesis is false and you fail to reject it .

The type II error gives you a false negative conclusion, meaning that it tells you something is false when it's actually true.

Observing the option we have we can conclude that the one that refers to type II error is c) Concluding that a treatment has no effect when it really does (false negative)

Note;

A) and B) show no errors.

D) shows a Type I error where you conclude something is positive when it's actually false.