# Stats Hmwk - Q1 Median Values Often used to measure the...

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Q1 Median To do this arrange the values in numerical order then look for the midpoint Values 10 23 17 15 8 11 16 8 10 11 15 16 17 17 15.5 Median Q2 Mode Values Place values in ascending numerical order Q3 Stnd Dev Standard Deviation is a measure of data dispersion.  The lower the data dis Q4 Empirical Rule Using the symetry principle we know exactily one half of each percentage re Approximately 68% of the area under the normal curve lies within +/- 1 stan Approximately 95% of the area under the normal curve lies within +/- 2 stan Approximately 99.7% of the area under the normal curve lies within +/- 3 sta Q5 Z score z = x-mean/standard deviation The higher the z score the better A Z score converts something into units of standard deviation so they comp Q6 Quartiles Often used to measure the central tendency when the data is significantly sk 1 CEO would be described using the median.  If the arithmetic mean were u

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## This note was uploaded on 04/21/2011 for the course STATS GM533 taught by Professor Adams during the Spring '11 term at Keller Graduate School of Management.

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Stats Hmwk - Q1 Median Values Often used to measure the...

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