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In orderto determine the averageweight of carry-on luggageby passenger airplanes a sample of 152 piecesof carry-on luggagewascollectedandweighed The average weightwas37.9pounds Assume thatwe know the

In orderto determine the averageweight of carry-on luggageby passenger airplanes a sample of 152 piecesof carry-on luggagewascollectedandweighed The average weightwas37.9pounds Assume thatwe know the standard deviationof the population to be 9 pounds Determinea 90% confidencenterval estimate for the meanweight of the carry-on luggage

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