Suppose the nation were in a recession with many people unemployed (out of work). why would economists be happy to see firms begins to but more capital goods

How would having more railroad tracks be advantageous during a war

The most effective way to provide children with safety messages is to

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