For DEF to the right , is the red dashed segment an altitude, a median , or neither ? Explain your answer A. Median , because it connects a vertex of DEF to the midpoint of the opposite side
B. Median , because it connects to the midpoint of a side
C. Neither, because it is perpendicular to one side and connects to the midpoint of another side
D. Altitude , because it is perpendicular to a side

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