A study of pollutants showed that certain industrial emissions should not exceed2.5parts per million. You believe a particular company may be exceeding this average. To test this supposition, you randomly take a sample of nine air tests. The sample average is3.4parts per million, with a sample standard deviation of0.4. Does this result provide enough evidence for you to conclude that the company is exceeding the safe limit? Use=0.05. Assume emissions are normally distributed.

Appendix A Statistical Tables

(Round your answer to 2 decimal places, e.g. 15.25.)

The value of the test statistic is_________________________ (enter the value of test statistic rounded to 2 decimal places)and we(select a decision)

fail to reject the null hypothesis OR reject the null hypothesis.