O. to
greg and josh want to go whitewater rafting in 3 weeks. josh is able to save the $480 he needs to go on the trip by saving the
pay he received for 5 hours of work each week. greg must save 8 hours worth of pay each week in order to have enough mone
how much more money does josh make than greg?
a $10
b. $12
c. $14
d. $20

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