Sandy works at a clothing store. she makes $9 per hour plus earns 10% commission on her sales. she worked 74 hours over the last two weeks and had a total of $2,057 in sales before taxes. which of the following is closest to how much she will earn in hourly wages and commission for those two weeks? a. $272 b. $872 c. $206 d. $666

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect