QUANTITY (Dinners out per month) 20 18 16 A 0 0 1 O 3 2 4 5 6 7 8 INCOME (Thousands of dollars per month) 9 10 Tim Hint: When answering the following, be sure to specify the appropriate units. The blue point already shown on the graph shows the data for Alyssa. According to the graph, Alyssa's income is has Suppose Alyssa's friend Tim has an income of $5,000 per month and has 10 dinners out per month. and she

Sailmaster makes high-performance sails for competitive windsurfers. Below is information about the inputs and outputs for one model, the Windy 2000. Units sold Sale price each Total labor hours Wage rate Total materials Total energy 1,211 $ 1,694 46,712 $ 13 $60,150 $ 4,100 Productivity per hour Calculate the productivity in sales revenue/labor expense. Note: Round your answer to 2 decimal places.

Suppose that the (unit) price is P=$2. Using the information given by the table, how many units should be bought to maximize the buyer's gains from trade? 9 0 1 2 3 4 5 A. 1 unit. B. 2 units. C. 3 units. D. 4 units. O E. 5 units. V (q) $0 $10 $19 $22 $25 $26

Jobs and productivity! How do retail stores rate? One way to answer this question is to examine annual profits per employee. The following data give annual profits per employee (in units of 1 thousand dollars per employee) for companies in retail sales. Assume ? ≈ 4.0 thousand dollars. 4.2 6.8 3.5 8.8 8.1 5.7 8.0 6.4 2.6 2.9 8.1 −1.9 11.9 8.2 6.4 4.7 5.5 4.8 3.0 4.3 −6.0 1.5 2.9 4.8 −1.7 9.4 5.5 5.8 4.7 6.2 15.0 4.1 3.7 5.1 4.2   (a) Use a calculator or appropriate computer software to find x for the preceding data. (Round your answer to two decimal places.)  ____________________thousand dollars per employee(b) Let us say that the preceding data are representative of the entire sector of retail sales companies. Find an 80% confidence interval for ?, the average annual profit per employee for retail sales. (Round your answers to two decimal places.) lower limit      ______thousand dollars upper limit…