A student of EE department wants to measure the voltage drop on a resistor. However, due to badcontacts, any measurement will not yield the exact value of that voltage. The student has decided to makea series of measurements and then use their average value as an estimate of the actual voltage drop. Thestudent believes that the successive measurements are independent random variables, where a standarddeviation is 0.2 [V]. What minimum number of measurements are needed to be at least 95 percent certainthat the result is accurate to within ±0.1 [V]?

Given that alpha =0.05 ,M,E = 0.1 .s.d =0.2 n =?

Answered: A student of EE department wants to…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A psychologist is studying the self image of smokers, which she measures by the self-image (SI) score from a personality inventory. She would like to estimate the mean SI score, µ, for the population of all smokers. She plans to take a random sample of SI scores for smokers and estimate u via this sample. Assuming that the standard deviation of SI scores for the population of all smokers is 80, what is the minimum sample size needed for the psychologist to be 99% confident that her estimate is within 10 of u? Carry your intermediate computations to at least three decimal places. Write your answer as a whole number (and make sure that it is the minimum whole number that satisfies the requirements). (If necessary, consult a list of formulas.) Explanation Check 2021 McGraw HI Education. All Rights Reserved Terms of Use PrivacyI Accessibility MacBook Air ** FI * FS 23 2$ 2 3 4 5 6. 8. Q W E Y P A S F G K C V B alt alt option command command option .. ..
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A psychologist is studying the self image of smokers, which she measures by the self-image (SI) score from a personality inventory. She would like to estimate the mean SI score, µ, for the population of all smokers. She plans to take a random sample of SI scores for smokers and estimate u via this sample. Assuming that the standard deviation of SI scores for the population of all smokers is 85, what is the minimum sample size needed for the psychologist to be 95% confident that her estimate is within 12 of u? Carry your intermediate computations to at least three decimal places. Write your answer as a whole number (and make sure that it is the minimum whole number that satisfies the requirements). (If necessary, consult a list of formulas.)

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