A major department store chain is interested in estimating the average amount its credit card customers spent on their first visit to the chain's new store in the mall. Fifteen credit card accounts were randomly sampled and analyzed with the following results: x-bar = $50.50 and sample variance = 400. Assuming the distribution of the amount spent on their first visit is approximately normal, what is the shape of the distribution that will be used to create the desired confidence interval for mu?

The market demand curve for a popular teen magazine is given by q = 80 - 10p where p is the magazine price in dollars per issue and q is the weekly magazine circulation in units of 10,000. if the circulation is 400,000 per week at the current price, what is the consumer surplus for a teen reader with maximum willingness to pay of $3 per issue?

Make or buy eastside company incurs a total cost of $120,000 in producing 10,000 units of a component needed in the assembly of its major product. the component can be purchased from an outside supplier for $11 per unit. a related cost study indicates that the total cost of the component includes fixed costs equal to 50% of the variable costs involved. a. should eastside buy the component if it cannot otherwise use the released capacity? present your answer in the form of differential analysis. use negative sign represent a net disadvantage answer; otherwise do not use negative signs with your answers. cost from outside supplier $answer variable costs avoided by purchasing answer net advantage (disadvantage) to purchase alternative $answer b. what would be your answer to requirement (a) if the released capacity could be used in a project that would generate $50,000 of contribution margin? use negative sign represent a net disadvantage answer; otherwise do not use negative signs with your answers.

Why do you think the federal government commits so much time and so many resources to supporting small businesses when they make less of a contribution to the overall economy than large corporations?