PLZZZ HELP ASAP James has budgeted $2100 per month for his total expenses. The cost of rent per month is $750
and the cost of food is $400. To stay within his budget, all other costs must be no more than what
amount?

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