The lifetime of a semiconductor laser has a lognormal distribution, and it is known that the mean and standard deviation of lifetime are10000 and 20000, respectively.(a) Calculate the parameters of the lognormal distribution. (Round the answers to 4 decimal places.)0 =8.4058@= 1.2686(b) Determine the probability that a lifetime exceeds 11000 hours. (Round the answer to 3 decimal places.)0.480(c) Determine the lifetime that is exceeded by 90% of lasers. (Round the answer to 1 decimal place.)2490.0hoursStatistical Tables and Charts In a data communication system, several messages that arrive at a node are bundled into a packet before they are transmitted over thenetwork. Assume the messages arrive at the node according to a Poisson process with λ = 34 messages per minute. Five messagesare used to form a packet. Round your answers to three decimal places (e.g. 98.765).a) What is the mean time until a packet is formed, that is, until five messages arrived at the node? 8.824secondsb) What is the standard deviation of the time until a packet is formed? 3.946secondsc) What is the probability that a packet is formed in less than 10 seconds? i 0.332d) What is the probability that a packet is formed in less than 5 seconds? 0.1575

Given: mean,μ = 10000 standard deviation, θ = 20000 Formula used: θ = ln μ2σ2+μ2 ω=lnσ2μ2+1

The lifetime of a semiconductor laser has a lognormal distribution, and it is known that the mean and standard deviation of lifetime ar 10000 and 20000, respectively. (a) Calculate the parameters of the lognormal distribution. (Round the answers to 4 decimal places.) 0= 8.4058 ()= 1.2686 (b) Determine the probability that a lifetime exceeds 11000 hours. (Round the answer to 3 decimal places.) 0.480 (c) Determine the lifetime that is exceeded by 90% of lasers. (Round the answer to 1 decimal place.) 2490.0 hours

The lifetime of a semiconductor laser has a lognormal distribution, and it is known that the mean and standard deviation of lifetime ar 10000 and 20000, respectively. (a) Calculate the parameters of the lognormal distribution. (Round the answers to 4 decimal places.) 0= 8.4058 ()= 1.2686 (b) Determine the probability that a lifetime exceeds 11000 hours. (Round the answer to 3 decimal places.) 0.480 (c) Determine the lifetime that is exceeded by 90% of lasers. (Round the answer to 1 decimal place.) 2490.0 hours

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

Please provide Handwritten answer. 2. Which of the following has the biggest impact on the adhesion of photoresist on silicon wafer? * A) Surface is clear from contamination B) Smooth surface and flatness of the silicon wafer C) Photoresist primers coating before the photoresist coating D) the silicon wafer is heated at 140 Celcius before the spin coating E) Other:
Ap-type semiconductor contains 20 aluminum atoms for every million silicon atoms. Calculate: 1. The electrical conductivity of this semiconductor. 2. The energy level Ea of this semiconductor if the electrical conductivity of ap-type semiconductor can be calculated by the equation o = o0exp (-EakBT), if the temperature of the semiconductor is 328.2K (00 = 600 Scm)
Discuss the manufacturing process of microchips, including lithography and semiconductor fabrication.
Consider two reverse biased diodes. If the ratio of applied reverse bias voltages is 0.5, find the ratio of transition capacitances of the two diodes.
True/False- (TorF) 1. Silicon Crystals are formed by the bonding of impurity atoms. 2. A p-type semiconductor is formed when a Group III element is injected into a semiconductor material.
5) An LED light is powered by a 20V DC (low:0V to high:20V) square wave source in frequency of 1.2KHZ. Find the power delivered (average) to the LED light when the square wave is in 30%, 50%, and 80% duty-cycle respectively.
Q2: A sample of silicon at room temperature. The silicon was doped with boron (III valence) by 9-10 * 0.2 if you know the atomic density (atom/cm 1022*5) calculate" 1. Concentration of electrons and holes And specify it (Efi - Efp), (Ec-Efp), (Efp - E) 2. Space between each of the following on EBD chart)
The Fermi level of the P-Type semiconductor is located at O a. none of the other answers O b. The top of the valence band. O c. The lower half of the energy gap. O d. The bottom of the conduction band. O e. The top of the conduction band. Of. The upper half of the energy gap.