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Archie is fed up with waiting in line at his local post office and plans...

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Archie is fed up with waiting in line at his local post office and plans to contact his congresswoman Archie knows that his complaint will not be well received without data to back it up So to improve his case over the next few months Archie records the waiting time for a selection of 26 post office visits made by him and other customers These waiting times in minutes are summarized in the following frequency distribution Waiting time in minutes 0 to 6 7 to 13 14 to 20 21 to 27 28 to 34 Frequency 2 9 6 6 3 Based on the frequency distribution using the midpoint of each data class estimate the mean waiting time for the data Archie collected For your intermediate computations use four or more decimal places and round your answer to one decimal place

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