In a randomized controlled experiment A. there is a control group and a treatment group. B. you control for random answers C. the control group receives treatment on even days only. D. you control for the effect that random numbers are not truly randomly generated

A. there is a control group and a treatment group

Explanation:

In a randomized controlled experiment  there is a control group and a treatment group. Randomized controlled experiments are are highly structured experiments in which manager obtains the data to work smarter based on the resources available. These are use din business environment and not time consuming or costly ; all you need to do is to have the data available of the business segment you want to evaluate. Randomization makes one feels more confident that any result he get is actually caused by the independent variable of interest.

answer; rational if melanie values sleep more highly than the benefits she expects to receive from attending the class;

answer; latency;