Outliers (z-scores) Outliers are points that are 'further away" from the other data points or possibly ``further away" from the trend or pattern for the other data. The precise line used for determining what is `further away" is sometimes subject to judgement and can vary depending on context and goals. [NOTE: Not every data set will have outliers.] One means of measuring to determine where the outliers are is use of the Z-score (the number of standard deviations away from the center). If the data is mound-shaped (largest amount concentrated near the middle), then a Z-score of Z> 3.0 OR of Z < - 3.0 would clearly be in the range for outliers. [See empirical rule later.] Suppose a set of data is mound-shaped and has a mean of u = 72 and standard deviation of O = 8.0. { (mu) = 72, (sigma) = 8.0 } For each of the following data points, find the Z-score and classify whether the point should be considered an outlier. a) xi = 93 b) xi = 98 c) xi = 45 d) xi = 52

Outliers (z-scores) Outliers are points that are 'further away" from the other data points or possibly ``further away" from the trend or pattern for the other data. The precise line used for determining what is `further away" is sometimes subject to judgement and can vary depending on context and goals. [NOTE: Not every data set will have outliers.] One means of measuring to determine where the outliers are is use of the Z-score (the number of standard deviations away from the center). If the data is mound-shaped (largest amount concentrated near the middle), then a Z-score of Z> 3.0 OR of Z < - 3.0 would clearly be in the range for outliers. [See empirical rule later.] Suppose a set of data is mound-shaped and has a mean of u = 72 and standard deviation of O = 8.0. { (mu) = 72, (sigma) = 8.0 } For each of the following data points, find the Z-score and classify whether the point should be considered an outlier. a) xi = 93 b) xi = 98 c) xi = 45 d) xi = 52

Name: QUESTION 12Outliers (z-scores)Outliers are points that are `further a
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Description: QUESTION 12Outliers (z-scores)Outliers are points that are `further away" from the other data points or possibly ``further away" from the trend or pattern for the other data.The precise line used for determining what is ' further away" is sometimes

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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