Statistics Exam with Correct Solutions

Statistics - the science of collecting, organizing, analyzing, and interpreting data in order to make decisions Treatment - applied to a group called the treatment group Control group - receives no treatment Placebo - a harmless, fake treatment that is made to look like the real treatment Simulation - the use of a mathematical or physical model to reproduce the conditions of a situation or process Survey - an investigation of one or more characteristics of a population Confounding variable - occurs when an experimenter cannot tell the difference between the effects of different factors on the variable Blinding - a technique where the subjects do not know whether they are receiving a treatment or a placebo Double - blind experiment- neither the experimenter nor the subjects know if the subjects are receiving a treatment or a placebo Randomization - a process of randomly assigning subjects to different treatment groups Sample size - the number of subjects in a study Replication - the repetition of an experiment under the same or similar conditions Census - a count or measure of an entire population Sampling - a count or measure of part of a population Data - consist from information coming from observations, counts, measurements, or responses