Graph: Y – 3 = 1/2(x+2) y
X
SO
6
-8
What is the y-intercept of the graphed linear function?
0 (0,-8)
(0,-2)
(0,2)
(0,4)
o
4
4
2
✓
x
6
4
2
2
4
6
-2
4
-6
Correct

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