4.25 The accompanying data on number of minutes used for cell phone calls in 1 month was...

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4.25 The accompanying data on number of minutes used for cell phone calls in 1 month was generated to be consistent with summary statistics published in a report of a marketing study of San Diego residents

(TeleTruth, March 2009):

189 0 189 177 106 201 0 212 0 306 0 0 59 224 0 189 142 83 71 165 236 0 142 236 130

a. Compute the values of the quartiles and the interquartile range for this data set.

b. Explain why the lower quartile is equal to the minimum value for this data set. Will this be the case for every data set? Explain.

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Introduction To Statistics And Data Analysis

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Authors: Roxy Peck, Chris Olsen, Jay L Devore

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4.25 The accompanying data on number of minutes used for cell phone calls in 1 month was...

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Introduction To Statistics And Data Analysis

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