Х 6
-8
Y
-9
9
-4
-6
-1
9
8
-8
The table shows y as a function of x. Suppose a point is added to this table. Which choice gives a point that preserves
the function?
A)
(-5,7)
B)
(9.-5)
(-1,-5)
D)
(8,-6)

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