Because of the relatively high interest rates, most consumers attempt to pay off their credit card bills promptly. however, this is not always possible. an analysis of the amount of interest paid monthly by a bank's visa cardholders reveals that the amount is normally distributed with a mean of $27 and a standard deviation of $7. a. what proportion of the bank's visa cardholders pay more than $30 in interest? b. what proportion of the bank's visa cardholders pay more than $40 in interest? c. what proportion of the bank's visa cardholders pay less than $15 in interest? d. what interest payment is exceeded by only 20% of the bank's visa cardholders?

The management of a private investment club has a fund of $250,000 earmarked for investment in stocks. to arrive at an acceptable overall level of risk, the stocks that management is considering have been classified into three categories: high risk (x), medium risk (y), and low risk (z). management estimates that high risk stocks will have a rate of return of 15%/year; medium risk stocks, 10%/year; and low risk stocks, 6%/year. the amount of money invested in low risk stocks is to be twice the sum of the amount invested in stocks of the other two categories. if the investment goal is to have a rate of return of 9% on the total investment, determine how much the club should invest in each type of stock. (assume that all the money available for investment is invested.)

In order to gauge public opinion about how to handle iran's growing nuclear program, a research group surveyed 1010 americans by telephone and asked them to rate the threat iran's nuclear program poses to the world on a scale of 1 to 10. describe the population, sample, population parameters, and sample statistics. identify the population in the given problem. choose the correct answer below.

Why does an organization prepare a balance sheet? a. to reveal what the organization owns and owes at a point in time b. to reveal how well the company utilizes its cash c. to calculate retained earnings for a given accounting period d. to calculate gross profit for a given accounting period