4[x+ 3 < 8 Choose the answer that gives both the correct solution and the correct graph.
O A. Solution: x < -5 or x>-1; graph:
-8 -7 -6 -5 -4 -3 -2
-1
0
1
2
OB. Solution: x< 1 or x> 5; graph:
-2 -1 0
1
2
3
4
5
6
7
8
C. Solution: x>-5 and x < -1; graph:
0
-8 -7 -6 -5 -4 -3 -2 -1
0
1
2
D. Solution: x > -5 and x < -1; graph:
-8 -7 -6 -5 -4 -3 -2 -1
0
1
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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