Which inequality best models the situation if variable h is the number of hours valerie might study each night?
valerie's goal is to study more than 1 1/4 hours each night.
which shows the possible number of hours she might study to reach this goal?
a.
h < 1 1/4
and h may be up to 3 hours.
b.
h ≥ 1 1/4
and h may be up to 3 hours.
c.
h > 1 1/4
and h may be up to 30 hours.
d.
h > 1 1/4
and h may be up to 3 hours.

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