Mathematics, 12.02.2021 01:10 keishah577
An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 250250 engines and the mean pressure was 5.55.5 pounds/square inch (psi). Assume the population variance is 0.490.49. The engineer designed the valve such that it would produce a mean pressure of 5.45.4 psi. It is believed that the valve does not perform to the specifications. A level of significance of 0.050.05 will be used. Find the P-value of the test statistic. Round your answer to four decimal places.
Answers: 3
Mathematics, 21.06.2019 15:20
If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?
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Mathematics, 21.06.2019 16:00
The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles
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Mathematics, 21.06.2019 16:40
14 pointslet x be the seats in the small van and y the seats in the large van. how many seats does the large van have? a company uses two vans to transport worker from a free parking lot to the workplace between 7: 00 and 9: 00a.m. one van has 9 more seats than the other. the smaller van makes two trips every morning while the larger one makes only one trip. the two vans can transport 69 people, maximum.how many seats does the larger van have?
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Mathematics, 21.06.2019 17:00
Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.
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An engineer has designed a valve that will regulate water pressure on an automobile engine. The valv...
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