Country Day's scholarship fund receives a gift of $ 180000. The money is invested in stocks, bonds, and CDs. CDs pay 4.75 % interest, bonds pay 4.8 % interest, and stocks pay 10.4 % interest. Country day invests $ 45000 more in bonds than in CDs. If the annual income from the investments is $ 12262.5 , how much was invested in each vehicle?

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables