Quiz 5- Ch4&5

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University of Texas, Arlington *

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2381

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Industrial Engineering

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Feb 20, 2024

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 Students have either already taken or started taking this quiz, so be careful about editing it. If you change any quiz questions in a significant way, you may want to consider regrading students who took the old version of the quiz. Points 9  Published  Show Question Details Details Questions Mastery Paths  4 pts Question Using the below table find the followings:

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Other Incorrect Match Options: 0.9511 -0.2131 -0.1471 0.4128 P(z=1.21) 0.3869 nswer nswer P(z=-0.47) 0.1809 nswer nswer P(1<z<2.2) 0.1448 nswer nswer P(-1<z<2.2) 0.8274 nswer nswer  2 pts Question A random variable x is centered around 2 (true mean) with the standard deviation of 1.

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Other Incorrect Match Options: 84.13% 50% 15.9% 34.12% What is the probability that the next value of x will fall between -1 and 5? 99.73% nswer nswer What is the probability that the next value of x will fall between 1 and 3? 68.26% nswer nswer  2 pts Question A battery manufacturer needs to report battery life within ±30 minutes at a 95% CI. for two below cases calculate the minimum number of tests. Case A : the manufacturer gave you the results of two tests: (10.75, 13) hrs with standard deviation of 1.59 hr. Case B : the manufacturer gave you the results of three tests: (10.75, 13, 12.5) hrs with standard deviation of 1.18 hr.

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Other Incorrect Match Options: ~43 ~2 ~97 ~737 How many batteries need to be tested in Case A ~1633 nswer nswer How many batteries need to be tested in Case B ~104 nswer nswer  1 pts Question Suppose there is a displacement transducer with a calibration curve where y = KE (the units of y and E are cm and volts, respectively) If K = 10 cm/V and u = ± 0.2 cm/V (95%), what is the displacement uncertainty at E = 15 ± 0.4 volts (95%)? K

5 cm nswer nswer 5 m 1.41 cm 1.41 m 2.7 3.1 m  New Question  New Question Group  Find Questions

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Quiz 5- Ch4&5

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