17 POINTS Sam needs to build a fence around his pool. The pool and the sidewalk around it have a distance around of 200 feet, so the perimeter of the fence needs to be at least 200 feet. The length of the fence is five more than three times the width.

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