Consider the following questions and post a response to one or more of them. What are some of the ways that the free-market system benefits and harms people? What are some of the ways that a command economy benefits and harms people? Would you rather live in a free-market economy or a command economy? Explain. PLS ANSWER POINTS 100!!

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design