Mathematics, 06.10.2019 05:30 nothingworksoutforme
An engineer has designed a valve that will regulate water pressure on an automobile engine. the valve was tested on 150 engines and the mean pressure was 7.7 lbs/square inch. assume the standard deviation is known to be 0.5. if the valve was designed to produce a mean pressure of 7.6 lbs/square inch, is there sufficient evidence at the 0.1 level that the valve does not perform to the specifications? state the null and alternative hypotheses for the above scenario.
Answers: 1
Mathematics, 21.06.2019 15:00
Which value of c would make he following expression completely factored? 8x+cy
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Mathematics, 22.06.2019 02:00
Thirteen bowlers were asked what their score was on their last game. the scores are shown below 190,150,154,194,181,190,170,151,170,178,161,180 find the range of the bowlers score a.56 b.44 c.34 d.23
Answers: 1
Mathematics, 22.06.2019 03:20
Circle a has center of (2,3) and a radius of 5 and circle b has a center of (1,4) and a radius of 10. what steps will show that circle a is similar to circle b 1) dilate circle a by a scale factor of 2 2) translate circle a using the rule (x+1,y-1) 3) rotate circle a 180 degrees about the center 4) reflect circle a over the y-axis
Answers: 2
An engineer has designed a valve that will regulate water pressure on an automobile engine. the valv...
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