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At Critical Care Hospital, the complication rate for hip replacement surgery is 8.96%. The relevant statistics appear in Table 1-A-5. The administrative staff at the hospital is concerned that the hospital complication rate does not compare favorably with the overall complication rate of all patients with hip replacement surgery in the county. The complication rate for the county is 5.5%. The county complication rate for patients age 65 or older is 8.0%; for those under age 65, the complication rate is 3.0%. Using the indirect method of standardization, calculate the complication rate for the hospital that has been adjusted for age.
A 3.3 kV, 20-pole, 50 Hz, 3-phase, starconnected induction motor has a slip-ring rotor of resistance 0.025 W and standstill reactance of 0.28 W per phase. The motor has a speed of 294 rpm when full-load torque is applied.
Calculate the mean free path of electrons in a metal, such as silver, at room temperature form heat capacity and heat conduction measurements
Consider two signals that have the same frequency. When the amplitude of the first signal is at its maximum, the amplitude of the second signal is at half its maximum from the zero level. What is the phase shift between the two signals
Calculate the frequency of the recovery voltage transient and the maximum voltage to appear across the CB contacts
An induction motor has an output or shaft power of 30 kW at 86% efficiency. For this operatingcondition, stator copper loss = rotor copper loss = core loss = mechanical rotational losses. Determine the slip.
suppose that the sequence 110010011 is used as a synchronization sequence preamble to a data packet. propose a method
How would you select the right components for the integrator and differentiator. What do you think would be the limiting factor in the component parameters, and in the input signal frequency
What is the minimum number of pins required for a socalled dual-op-amp IC package, one containing two op amps What is the number of pins required for a so-called quad-opamppackage, one containing four op amps
A 240kW 500 Volt 1750rpm separately excited dc generator has an overall efficiency of 94%. The shunt field resistance is 60ohms, and the rated current is 5amps. The I^2R loss in the armature is 0.023pu.
The reactance of a coil equals the resistance of a 10-kΩ resistor at a frequency of 5 kHz. - Determine the inductance of the coil.
For the steady flow adiabatic process shown in Figure, calculate the rate of change of entropy of the entire heater.
The power amplifier for a car stereo amplifier has a rated output power of 750 watts when operating at room temperature. Assuming a Class B amplifier with the maximum theoretical efficiency is used,
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