Population proportion to within a sampling error
If you want to be 95% confident of estimating the population proportion to within a sampling error of (plus or minus 0.05 ) and there is historical evidence that the population proportion is approximately 0.37, what sample size is needed?
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Now suppose 58 g of ice initially at a temperature of -28 degrees C is added to the water. Assuming no transfer of heat to or from the surroundings, what is the final mass (in grams) of the ice (if any) that remains in the system?
A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n independent trials of the experiment n=11, p=0.15, x greater than or equal to 4
At station 2, which is downstream of station 1, the pressure is 0.1 atm. What is the Mach number at station 2? What is the velocity of the gas at station 2? What is the area of the nozzle at station 2?
A cattle watering fountain has a free water surface with a size equal 0.6m x 0.3m, with the longer side being parallel to the prevailing wind. Wind at -23 C is blowing over the surface at 1 m/s.
The water is then cooled until the piston is on the lower stops and the pressure of the water in the cylinder is 100kPa. Find the initial specific volume and specific internal energy of the water in the cylinder.
A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n independent trials of the experiment n=60, p=0.95, x greater than or equal to 58 p(58)=
Saturated water vapor in a closed sysytem is condensed by cooling it at constant pressure to a saturated liquid at 40KPa. Determine the heat transferred and the work done during this process, in KJ/Kg
The african elephant has developed the pinna or external ear that functions as a radiator-convector. The pinna can be modeled as a flat plat with air flow over it.
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