In a statistics examination the mean score was 78 and the standard deviation was 10 (a) Determine the standard score of two students whose grade were 93 and 62 , respectively.
(b) Determine the grades of two students whose standard score was -0.6 and 1.2 respectively.

Ming chen began a professional practice on june 1 and plans to prepare financial statements at the end of each month. during june, ming chen (the owner) completed these transactions. a. owner invested $61,000 cash in the company along with equipment that had a $25,000 market value. b. the company paid $1,900 cash for rent of office space for the month. c. the company purchased $15,000 of additional equipment on credit (payment due within 30 days). d. the company completed work for a client and immediately collected the $2,100 cash earned. e. the company completed work for a client and sent a bill for $7,000 to be received within 30 days. f. the company purchased additional equipment for $5,500 cash. g. the company paid an assistant $3,000 cash as wages for the month. h. the company collected $5,200 cash as a partial payment for the amount owed by the client in transaction e. i. the company paid $15,000 cash to settle the liability created in transaction c. j. owner withdrew $1,500 cash from the company for personal use. required: enter the impact of each transaction on individual items of the accounting equation. (enter decreases to account balances with a minus sign.)

Annuity payments are assumed to come at the end of each payment period (termed an ordinary annuity). however, an exception occurs when the annuity payments come at the beginning of each period (termed an annuity due). what is the future value of a 13-year annuity of $2,800 per period where payments come at the beginning of each period? the interest rate is 9 percent. use appendix c for an approximate answer, but calculate your final answer using the formula and financial calculator methods. to find the future value of an annuity due when using the appendix tables, add 1 to n and subtract 1 from the tabular value. for example, to find the future value of a $100 payment at the beginning of each period for five periods at 10 percent, go to appendix c for n = 6 and i = 10 percent. look up the value of 7.716 and subtract 1 from it for an answer of 6.716 or $671.60 ($100 × 6.716)

Bond j has a coupon rate of 6 percent and bond k has a coupon rate of 12 percent. both bonds have 14 years to maturity, make semiannual payments, and have a ytm of 9 percent. a. if interest rates suddenly rise by 2 percent, what is the percentage price change of these bonds?