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Calculate the built-in voltage of a junction in which the p and n regions are doped equally with 5×1016atoms/cm3. Assume ni = 1.5 × 1010/cm3. With the terminals left open, what is the width of the depletion region, and how far does it extend into the p and n regions? If the cross-sectional area of the junction is 20 μm2, find the magnitude of the charge stored on either side of the junction.
An insurance contract sold to (x) and (y) provides for a death benefit of 1 unit at moment of the first death. Find the initial annual rate of premium payment.
A psychologist studied self-esteem scores and found the data set to be normally distributed with a mean of 50 and a standard deviation of 6. A raw score of 47 is associated with what percentile?
The primary and secondary winding of a three-phase transformer are delta- and wye-connected, respectively. The rated power is 75 kVA and the rated primary voltage is 12 kV (line-to-line). If each phase has N1/N2 ˆ 92, calculate the secondary rated..
Form a transition matrix for this process taking as states F, 1, 2, 3, 4, and G where F stands for flunking out and G for graduating, and the other states represent the year of study.
How many companies respond that taxes are too high are public companies?
what is the area under the normal curve between z -1.0 and z
Create a dummy variable based on the variable gender. The dummy should equal 1 for male children and 0 otherwise. Name this variable gender dum.
Calculate the covariance
Scores on an endurance test for cardiac patients are normally distributed with a mean of 185 and a standard deviation of = 8. What is the probability a patient will score below 190? What is the probability a patient will score above 185
Assess the impact of an event on a population. I ran a survey before the event and then I ran the survey after the event. The collected responses matched between prior to the event and after. I used paired t-test to determine if the event had a posit..
Formulate the null and alternative hypotheses for a hypothesis test. Identify the population and describe how to select a random sample for a hypothesis test. State in clear terms the conclusion that should be given if the null hypothesis is rejec..
Below are five (5) separate distributions. a. Calculate the Range b. Use the range to calculate the standard deviation c. Calculate the standard deviation (and show any difference)
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