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1. An employee at a supermarket is giving out samples of cake, and his boss asks him to get opinions from 20 males and 20 females on the quality of the cake. The employee does not want to bother shoppers, so he only gives the cake sample and requests participation from the first 20 males and 20 females who make eye contact with him. What type of sampling method is this employee using?
2. What is sampling error and what factors contribute to how big a sample you should use?
What are the drawbacks to developing resources offshore?
Design and sketch a band pass filter consisting of an RC high-pass filter with a cutoff frequency of 300 Hz and an RC low-pass filter with a cutoff frequency of 700 Hz. Carefully select the R and C of each filter so that one filter does not load t..
A transistor current source (also known as current ''sink'') was built with a 2N3904. The Ic was measured for different values of a load resistance. It was noticed that Ic was pretty much constant for the first 1900 ohms values
Binary symmetric channel, Assume that we are transmitting binary digits over a binary symmetric channel. Let p(x=0)=p(x=1)=0.5.
Let x(t) = u(t) u(t 1).Find the average signal y(t) using the above integral. Let T = 1. Carefully plot y(t).Verify your result by graphically computing the convolution of x(t) and the impulse response h(t) of the averager.
assume there was no current in the series rc circuit because of an open circuit. how could you quickly determine if
The acceptor concentration in a particular junction is 10^6/cm^3 and the donor concentration is 10^15/cm^3. Assume ni=1.5*10^10/cm^3. Find the junction built-in voltage.
How to determine the suitable size of cable for Electrical Wiring Installation and please with Solved Examples.
Consider the first-order linear differential equation y(t) + 5 (dy(t) / dt) = x(t) Compute the zero-input response (general solution of the homogeneous equation) to find the system-specific part of the response
Problem Statement: Solve the load flow problem below in Matlab, or similar program, using the Gauss-Seidel Method.
A carrier signal c(t) = 10 cos(2pifct) is modulated using a message signal m(t) cos(20pit). The modulation is FM, with kf = 50.Write equation for modulated signal What is average transmitted power & modulation index
Two strands of infinitely long current rights carry currents of equal magnitude. Find the magnetic field produced by the two filaments at the midpoint between the two strands. Compare this result if the currents: a) have the same direction
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