Assuming normal populations, is there any evidence to suggest that the price duduction, on average, more than $17 at 5% level of significance? product A B C D E F G H I J Before ($) 191 204 222 209...


Assuming normal populations, is there any evidence to suggest that the price duduction, on average, more than $17 at 5% level of significance?













































product



A



B



C



D



E



F



G



H



I



J



Before ($)



191



204



222



209



196



179



195



204



210



235



After ($)



172



181



205



194



174



163



176



189



188



206




Jun 08, 2022
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