Divide (8.6 x 108) by (3.2 x 103). express your answer in scientific notation.
a) .26875 x 106
b) 2.6875 x 105
c) 2.6875 x 1011
d) 26.875 x 1024

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