The life span of a streetlight is uniformly distributed on [1, 100]. Bulbs are replaced at time T if they have not failed. When replaced at time Tthe cost of replacement is 20. If replaced before T, the cost of replacement is 30 since non-routine maintenance requires reallocation ofequipment. What value of T minimizes the expected cost per unit of operating time for bulb replacement?

Answered: The life span of a streetlight is…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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For the following situations, identify the type of variable (qualitative, nominal, ordinal, quantitative, discrete, continuous, interval, ratio), multiple types may apply. 1) Data of weight gain of rats fed only junk food for four weeks in an experiment. 2) Data collected from the order that students finsih their exam. 3) Time it takes for a car battery to die
Lecture(8.8): The amount of time people engage in physical activity mat be related to health outcome. Those who report that they spend more than 15 hours are put into one while those who spend less 10 were put into another group. (Those who fall in between 10 and 15 were left out of the study); The reaearcher then ask the participants to wear a monitor for one month. The average time in minutes is recorded and shown below . Is there any evidence that on average people who watch less than 10 hours watching televsion spend more time on physical activity.?. Test the hypotheses at (alpha=0.05) using the 5 step procedure <10 hours 75 63 118 35 82 >15 hours 62 6 78 43 22 33
A) Y=1566.67x + 1716.67 B) Y= 3x + 2000 C) Y= 4700x + 1500 D) Y= x + 1700
Pison/&user=tmorrison7&key%3DrotNBBCzVIsGRqZV8t.. Previous Problem Problem List Next Problem (1 point) Empathy means being able to understand what others feel. To see how the brain expresses empathy, researchers recruited 16 couples in their midtwenties who were married or had been dating for at least two years. They zapped the man's hand with an electrode while the woman watched, and measured the activity in several parts of the woman's brain that would respond to her own pain. Brain activity was recorded as a fraction of the activity observed when the woman herself was zapped with the electrode. The women also completed a psychological test that measures empathy. Subject 1 3 4 7 8 9 10 11 12 13 14 15 16 Empathy Score 41 48 39 56 64 63 59 53 Brain Activity -0.127 0.3910.02 0.378 0.015 0.404 0.11 0.513 0.149 0.736 0.254 0.573 0.217 0.72 0.355 0.786 47 52 64 73 12 68 28 120 1.2 sub ject Z F20 10,0 120 -8.4 Given that the equation for the regression line is y = 0.00619x +0.00032, what is…
ABF needs to deliver an important LTL shipment in 6 days. If the delivery is 2 days late then ABF is charged a penalty of $500. The cost of the shipment is $3,200 and costs decrease at a rate of $100 for every day deviation from the target delivery time. 1) What delivery time minimizes ABF's costs? a. 6.4 days b. 6.7 days c. 7.3 days d. 6 days e. 7 days f. 7.5 days 2) What is the Taguchi Loss cost if ABF delivers at the target delivery time? a. $2,600 b. $3,200 c. $500 d. $0 e. $3,700 f. $3,100 g. $100 Please show all the works.

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