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Bogdan [553]
3 years ago
5

The valve was tested on 240240 engines and the mean pressure was 7.57.5 pounds/square inch (psi). Assume the population standard

deviation is 1.01.0. The engineer designed the valve such that it would produce a mean pressure of 7.67.6 psi. It is believed that the valve does not perform to the specifications. A level of significance of 0.10.1 will be used. Find the P-value of the test statistic. Round your answer to four decimal places.
Mathematics
1 answer:
krek1111 [17]3 years ago
6 0

Answer:

z = 1.55

Step-by-step explanation:

The answer is attached.

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