Profit is equal to revenue minus cost, where revenue equals price times quantity of output, while cost equals the wage rate times employment (assuming wages are the only cost of production). Assume that, on average, each firm produces 100 units of output a day, employs 90 workers, and pays a wage of $100 a day.

a) As the price of output rises from $80 to $90, $100, $110, and $120, show how the profitability of firms changes.
b) At which of these price levels will firms have an incentive to raise or lower output?
c) From these observations, construct an aggregate supply curve.

Which steps are important when designing and conducting a scientific experiment? hide the results from fellow scientists. identify the independent variable. eliminate all dependent variables. address any confounding variables. form a non-falsifiable hypothesis.

Consider the role of dr. kenny in the novel. how does rukmani feel about him, and what theme is represented by their interactions? respond in at least 150 words.

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.