1. the four jones children received
a gift of money from their grand-
mother. she gave them $270 al-
together. amanda, the oldest
child, was given 4/9 of the
money. the second-oldest child,
betty, received 1/3 of the
money. the next oldest, cameron, got 1/6 of the
money. dalia, the youngest, received the rest of the
money. how much money did each child receive?
(check: cameron got 3 times as much money as dalia.)

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