Question 5 1 pts
Mrs. Brown gave her class the following mental math
problem: Find the product of -8 and -7, multiply your
answer by 5. then divide you result by - 5
What is the final number?i
0 -56
o 56
0-280
o 280

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