Can I get help and plz no links. Links don’t work for me

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

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle