Bank of America's Consumer Spending Survey collected data on annual credit card charges in seven different categories of expenditures: transportation, groceries, dining out, household expenses, home furnishings, apparel, and entertainment. Using data from a sample of 42 credit card accounts, assume that each account was used to identify the annual credit card charges for groceries (population 1) and the annual credit card charges for dining out (population 2). Using the difference data, the sample mean difference was = $850, and the sample standard deviation was sd = $1123. Formulate the null and alternative hypotheses to test for no difference between the population mean credit card charges for groceries and the population mean credit card charges for dining out. H0: d Ha: d Use a .05 level of significance. What is the p-value? The p-value is Can you conclude that the population means differ? Which category, groceries or dining out, has a higher population mean annual credit card charge? What is the point estimate of the difference between the population means? $ What is the 95% confidence interval estimate of the difference between the population means (to the nearest whole number)? ( , )

Which of the following is false regarding the links between jit and quality? a. jit increases the cost of obtaining good quality. b. as quality improves, fewer inventory buffers are needed; in turn, jit performs better. c. jit reduces the number of potential sources of error by shrinking queues and lead times. d. inventory hides bad quality; jit immediately exposes it. e. if consistent quality exists, jit allows firms to reduce all costs associated with inventory.

Prepare journal entries for each transaction and identify the financial statement impact of each entry. the financial statements are automatically generated based on the journal entries recorded. apr. 1 tanner invested $80,000 cash along with office equipment valued at $26,000 in the company in exchange for common stock. apr. 2 the company prepaid $9,000 cash for 12 months' rent for office space. the company's policy is record prepaid expenses in balance sheet accounts. apr. 3 the company made credit purchases for $8,000 in office equipment and $3,600 in office supplies. payment is due within 10 days. apr. 6 the company completed services for a client and immediately received $4,000 cash. apr. 9 the company completed a $6,000 project for a client, who must pay within 30 days. apr. 13 the company paid $11,600 cash to settle the account payable created on april 3.apr. 19 the company paid $2,400 cash for the premium on a 12-month insurance policy. the company's policy is record prepaid expenses in balance sheet accounts. apr. 22 the company received $4,400 cash as partial payment for the work completed on april 9.apr. 25 the company completed work for another client for $2,890 on credit. apr. 28 the company paid $5,500 cash in dividends. apr. 29 the company purchased $600 of additional office supplies on credit. apr. 30 the company paid $435 cash for this month's utility bill.

Suppose that electricity producers create a negative externality equal to $5 per unit. further suppose that the government imposes a $5 per-unit tax on the producers. what is the relationship between the after-tax equilibrium quantity and the socially optimal quantity of electricity to be produced?