The following materials standards have been established for a particular product: Standard quantity per unit of output 4.5 meters Standard price $17.40 per meter The following data pertain to operations concerning the product for the last month: Actual materials purchased 7,000 meters Actual cost of materials purchased $124,250 Actual materials used in production 6,500 meters Actual output 1,420 units What is the materials price variance for the month?

Total marketing effort is a term used to describe the critical decision factors that affect demand: price, advertising, distribution, and product quality. define the variable x to represent total marketing effort. a typical model that is used to predict demand as a function of total marketing effort is based on the power function: d = axb suppose that a is a positive number. different model forms result from varying the constant b. sketch the graphs of this model for b = 0, b = 1, 0< b< 1, b< 0, and b> 1. (we encourage you to use excel to do this.) what does each model tell you about the relationship between demand and marketing effort? what assumptions are implied? are they reasonable? how would you go about selecting the appropriate model?