At a summer job, Melissa fixes computers for small businesses. She charges a $30 fee to
start a job and $15 per hour for each hour she
spends on the job. Use the values in this
problem to complete the inequality to represent
the number of hours she needs to work on one
computer to make at least $90. The number of
hours worked is represented by t.
t +

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