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Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level...

Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 7.1 parts/million (ppm). A researcher believes that the current ozone level is not at the normal level. The mean of 26 samples is 6.6 ppm with a standard deviation of 1.0. Does the data support the claim at the 0.05 level? Assume the population distribution is approximately normal.

Step 5 of 5: Make the decision to reject or fail to reject the null hypothesis.

Math   Statistics-And-Probability   
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