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 7.7

7.7 pounds/square inch. It is believed that the valve performs above the specifications. The valve was tested on 180

180 engines and the mean pressure was 7.8

7.8 pounds/square inch. Assume the variance is known to be 0.81

0.81. A level of significance of 0.02

0.02 will be used. Determine the decision rule.

Enter the decision rule.