Grades on final exam in a statistic course
Suppose we know grades on final exam in a statistic course are normally distributed with a mean of 72 and standard deviation 15 so find the first,second, and third quartiles?
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At the beginning of the compression process of an air-standard Otto cycle, P1 = 14.7 lb/in2 and T1 = 530°R. The maximum cycle temperature is 3000°R. Determine the thermal efficiency and mean effective pressure in lb/in2 for compression rat
The length of the analysis is 15 years. Compute the simple payback time and the discounted net present value for the proposed design.
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A four cylinder, four stroke gasoline internal combustion engine has a bore of 9.4 cm and a stroke of 8.6 cm. The clearance volume is 16% of the cylinder volume when at bottom dead center and the crankshaft rotates at 2400 RPM.
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A neon sign that requires a voltage of 12000 V is plugged into a 120 V wall outlet. What ratio of turns (primary/secondary) must the transformer have to power the sign?
The annual cost of operating a heat pump at year-end prices is R, with units of $/yr. Show that the uniform annual costs are?
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