Jordan drove for 6 hours at 55 miles per hour, while matt drove for 3 hours at 60 miles per hour. if isaac drove 82 miles longer than jordan and matt drove combined, for how many miles did isaac drive

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