No one seemed to get this answer what is the measure of the angle? a.155° b.90° c.205° d.315° im pretty sure its a. 99% sure just needed to see it worked out, to make sure its right. i posted the graph..

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