In: Statistics and Probability
Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 5.5 parts/million (ppm). A researcher believes that the current ozone level is not at the normal level. The mean of 13 samples is 6.0 ppm with a standard deviation of 0.9 Does the data support the claim at the 0.1level? Assume the population distribution is approximately normal.
Step 1 of 3 : State the null and alternative hypotheses.
Step 2 of 3: find the p value for the hypothesis test
Step 3 of 3 : Make the decision to reject or fail to reject the null hypothesis.