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An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such that it would produce a
An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such that it would produce a mean pressure of
4.1pounds/square inch. It is believed that the valve performs above the specifications. The valve was tested on
200 engines and the mean pressure was
4.2 pounds/square inch. Assume the variance is known to be
0.36. A level of significance of
0.02 will be used. Find the value of the test statistic. Round your answer to 2 decimal places.
Enter the value of the test statistic.
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