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The cash flow profile for an investment is given below, and the interest rate is 8 percent compounded annually.
a. Find the present worth of this series using the actual cash flows.
b. Find the future worth of this cash flow series using the actual cash flows.
c. Find the future worth using the present worth.
d. Find the worth of the series at EOY 4 using the individual cash flows.
e. Find the present worth using the worth at EOY 4.
In a study to estimate the effects of smoking on routine health risk, employees were classified as continuous smokers, recent ex-smokers, long-term ex-smokers, and those who never smoked. Samples of 96, 34, 86, and 206 members of these groups were taken. Sample mean numbers of mean health risk rates per month were found to be 2.15, 2.21, 1.47, and 1.69, respectively. The F ratio calculated from these data was 2.56.
a. Prepare the complete analysis of variance table.
b. Test the null hypothesis of equality of the four population mean health risk rates.