Jay paid $126 to rent a car for 4 days. stephanie paid $184.50 to rent a car for 6 days.
who paid the lower daily rate and what was this rate?
a.
jay paid the lower rate of $30.75.
b.
jay paid the lower daily rate of $31.50
c.
stephanie paid the lower daily rate of $30.75.
d.
stephanie paid the lower daily rate of $31.50.

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