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In 1995 the median price of a pc was 1200. Suppose that a random sample of of 100 persons who bought their pcs during that year, and record amount spent by each of them on his/her pc. State the approximate sampling distribution of theta hat, the proportion of persons who spent more than 1200 on a pc. Find the probability that more than 60% of this group spent more than 1200.
The probability that a person will install a black telephone in a residence is estimated to be 0.3. Find the probability that the tenth phone installed in a new subdivision is the fifth black phone.
The steering wheel has backlash. This means there is a delay between the time the wheel is turned, and the time the car responds. The driver tends to overturn, which leads to instability and lack of control of the car.
The system has total capacitance CT = 1.0 muF (10 ^ 6 Farad) and average frequency in use at 10kHz. The transformation of battery power to power inn the microcontroller and additional components occurs with virtually no losses.
Describe whether Google is exploitive, impoverished, supportive, or enlightened. Describe the features google that indicate which kind of organization it is. Describe five steps google could take to become better and move up in the scale.
A unity feedback control systems for a robot submarine has a plant with a third-order transfer function G(s) = K / (s(s + 10)(s +50)) We want the overshoot to be approximately 7.5% for a step input
Consider the logic function f(a,b,c) = abc + ab'c + a'bc + a'b'c + a'bc'. (a) Draw the logic circuit for the function f given above. (b) Let the cost of a logic circuit be the total number of gates plus the total number of inputs to all gates
2) A device that responds to a small current or voltage change by activating a mechanical switch allowing a larger amount of current flow is 3) Where does a program transfer to when an interrupt occurs Interrupt vector table Interrupt service ro..
Capacitance can be altered by bringing the two wire line close to ground. (a) Apply the method of images to determine the Capacitance of the two-wire line shown in the figure, where the lower wire is suspended a distance from the PEC ground.
If the efficiency of the motor and drive system is 80% and it is fed through a transistor regulator at 12V, what is the mean current through this regulator when the printer is working continuously?
Using eye diagram drawings of PAM NRZ waveforms used to transmit bits in the baseband show and explain how awgn can effect bit error rates and how timing jitter can effect bit error rates.
A causal linear time-invariant continuous-time system has impulse respose h(t)=(sin t)u(t-2). Compute the output respone y(t) for all t is greater than 0. compute the output response y(t) when x(t)=u(t) -u(t-1).
A balanced Y-connected power system is known to have Van=100
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