Question

JAILYN WALKER - Save & Exit Certify Lesson: Chapter 10 Review Question 2 of 10, Step 1 of 1 1/10 Correct An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 160 engines and the mean pressure was 5.3 pounds/square inch (psi). Assume the population standard deviation is 0.6. The engineer designed the valve such that it would produce a mean pressure of 5.4 psl. It is believed that the valve does not perform to the specifications. A level of significance of 0.1 will be used. Find the P-value of the test statistic. Round your answer to four decimal places. Tables Keypad Answer How to enter your answer Submit Answe 2020 Hawkes Learning

Answer 1

Given -5.3,830.6, 04160 Null & alternative hypotheses will be, Ho: 4 = 5.4 Hail ²5.4 for a two te for tailed ato.1, the catical value test is ze = 1.64 test statistic = a = x - Ho oli 5.3.5.4 0.6 (Woo 2=-2108 Decision since it is observed that 121=2.108 wrc = 1.64, it is then concluded the oul Hypotheses is dejected that Conclusioni Teze is enough evidence to claim that the value does not perform to the Specifications