A financial planner wants to compare the yield of income and growth mutual funds. Fifty thousand
Dollars is invested in each of a sample of 35 income and 40 growth funds. The mean increase for a twoyear
Period for the income funds is $900. For the growth funds the mean increase is $875. Income funds
Have a population standard deviation of $35; growth funds have a population standard deviation of $45.
At the 0.01 significance level, can you conclude that mean yield for the growth fund is less than the
Mean yield for the other fund?

There is a Finance Board, perhaps they will jump in and answer your question. If you don't understand statistics then you should consult your tutior