The mean of 100 values was found to be 40.It was later discovered that a value wasmisread as 83 instead of 53. Find out thecorrect mean.Select the correct response:37.09O39.0739.7037.90( PreviousContinue >Status

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Answered: The mean of 100 values was found to be…

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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A scale is tested by repeatedly weighing a standard 9.0 kg weight. The weights for 12 measurements are 8.3,9.2,8.3,8.7,8.4,8.3,8.5,8.0,8.4,8.5,8.1,9.3 Determine the mean weight. Give your answer precise to one decimal place. mean:
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Arsenic is toxic to humans and people can be exposed to it through contaminated drinking water, food, dust, and soil. Scientists have devised a non-invasive way to measure a person's level of arsenic poisoning: by examining toenail clippings. In a recent study, scientists measure the level of arsenic (in mg/kg) in toenail clippings of 8 people who lived near a former arsenic mine in Great Britain. The following levels are recorded. 0.8, 1.9, 2.7, 3.4, 3.9, 7.1, 11.9, 26.0 Below are the summary statistics of the data. min Q1 median Q3 max sd n mean 0.8 2.5 3.65 8.3 26 7.2125 8.368041 8 Suppose the 8 people examined were randomly sampled from residents near the former arsenic mine. Is it legitimate to construct a 95% confidence interval for the mean level of arsenic (in mg/kg) in toenail clippings for residents near the former arsenic mine using a t-distribution? Explain briefly.
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The mean of 100 values was found to be 40. It was later discovered that a value was misread as 83 instead of 53. Find out the correct mean. Select the correct response: 37.09 39.07 39.70 37.90 K Previous