Question

In: Statistics and Probability

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 4.8 parts/million (ppm). A researcher believes that the current ozone level is at an excess level. The mean of 6 samples is 5.0 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 1 of 5 :  

State the null and alternative hypotheses.

Find the value of the test statistic. Round your answer to three decimal places.

Specify if the test is one-tailed or two-tailed.

Determine the decision rule for rejecting the null hypothesis. Round your answer to three decimal places.

Make the decision to reject or fail to reject the null hypothesis.

Solutions

Expert Solution

Test statistic = 0.490

Conclusion :- fail to reject the null hypothesis.

orchestra answered 1 year ago
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