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Locate a news article or report(in a popular news source such as Time, Newsweek, or the Wall Street Journal) in which a population mean is estimated from a sample. The article should include a margin of error and confidence interval.
Discuss the subject matter in the article, and the results and what the confidence interval and margin of error mean as they apply to the specific subject matter.
calculate the percentage volume change that would occur if a material were to be transformed from fcc to bcc. assume
The temperature in a pressure cooker during cooking at sea level is measured to be 250 F. Determine the absolute pressure inside the cooker in psia and in atm. Would you modify your answer if the place were at a higher elevation?
a household hot water system heats water only as it is needed. the water enters the electric heater at 60f and is
A large rocket engine delivers hydrogen at 1500°C and 3 MPa to a nozzle with an exit pressure equal to the ambient pressure of 54 kPa. If the thrust of the rocket is 2 MN what is the exit velocity and mass flow rate of hydrogen? (use k = 1.41 and ..
Two kilograms of Refrigerant 134a, initially at 200 kPa and occupying a volume of 0.11874 m3, undergoes a process at constant pressure until the volume has doubled. Kinetic and potential energy effects are negligible.
in an ideal dual combustion cycle conditions at the commencement of adiabatic compression are 93 kpa 0.05 m3 and 24degc
For identical gears with a 25° pressure angle, what is the relative loading on the six bearings shown?
A turbine is supplied with 0.6 m3 /s of water from a 0.3 m diameter pipe. The discharge pipe is 0.4 m in diameter. Determine the pressure drop across the turbine if it delivers 60 kW of power.
The thin-walled cylindrical pressure vessel is constructed from a steel plate by forming the plate into a helix and welding along the edges. Calculate the hoop and longitudinal stresses
Assuming the plant operates on the ideal vapor-compression cycle using refrigerant 134-a between the pressure limits of 120 and 700 kPa, determine - The mass flow rate of refrigerant
the power p required to drive a fan is believed to depend on density p flow rate q impeller dia. d and angular veloctiy
Estimate the tip temperature of your pinky finger
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