Inventory at the beginning of the year was 4500 jump ropes. totz company wants to have 10% of the next quarter's sales in units on hand at the end of each quarter. how many jump ropes should totz company produce during the first quarter?

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?