Mathematics, 05.05.2020 07:03, krystlelong29
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 7.4 pounds/square inch. It is believed that the valve performs above the specifications. The valve was tested on 130 engines and the mean pressure was 7.6 pounds/square inch. Assume the standard deviation is known to be 0.9. A level of significance of 0.02 will be used. Make a decision to reject or fail to reject the null hypothesis. Make a decision.
Answers: 1
Mathematics, 22.06.2019 01:00, sierraseideman1023
X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20
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Mathematics, 22.06.2019 01:00, gomez36495983
If johnny ate 5 cans of sugar, but in the kitchen they only had 3. what did johnny eat? (he found a secret stash btw.)
Answers: 2
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