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One indicator of an outlier is that an observation is more than 2.5 .pdf

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One indicator of an outlier is that an observation is more than 2.5 standard deviations from the mean. Consider the data value 80. (a) If a data set has mean 70 and standard deviation 5, is 80 a suspect outlier? Solution Given mean=70, s=5 (X-mean)/s =(80-70)/5 =2 Since 2 is not more than 2.5 standard deviations from the mean, 80 is not a suspect outlier.

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One indicator of an outlier is that an observation is more than 2.5 standard deviations from the mean. Consider the data value 80. (a) If a data set has mean 70 and standard deviation 5, is 80 a suspect outlier? Solution Given mean=70, s=5 (X-mean)/s =(80-70)/5 =2 Since 2 is not more than 2.5 standard deviations from the mean, 80 is not a suspect outlier

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One indicator of an outlier is that an observation is more than 2.5 .pdf

  • 1. One indicator of an outlier is that an observation is more than 2.5 standard deviations from the mean. Consider the data value 80. (a) If a data set has mean 70 and standard deviation 5, is 80 a suspect outlier? Solution Given mean=70, s=5 (X-mean)/s =(80-70)/5 =2 Since 2 is not more than 2.5 standard deviations from the mean, 80 is not a suspect outlier