Question: An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 180 engines and the mean

An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 180 engines and the mean pressure was 5.7 pounds/square inch (psi). Assume the population standard deviation is 0.8. If the valve was designed to produce a mean pressure of 5.6 psi, is there sufficient evidence at the 0. 1 level that the valve performs above the specifications? Step 4 of 6 : Find the P-value of the test statistic. Round your answer to four decimal places. Answer Tables Keypad How to enter your answer (opens in new window) Keyboard Shortcuts Previous step answers Submit

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