2 [
Solve the following systems using the y = mx + b met
y = -2x + 1
4.
y = x-5
100
8
B
6
00
4
2
N
4
07
-10-8-6-4-2
-2
8 10
N
-4
-6
-8
-10

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