Question

MAA watwork 2018 spring bailonritsum mth23 821 132 Jeing the main m 2 9.2 Testing the Mean mu: Problem 2 Nest Proble (1 poiet) 50 people are randomly seleced and the accuracy of their wristwatches is checked with poctve erors representing wridhes fhat ae sheed of t comect tima and negathva emors represening worlches thst ane behind the corect time We use this to assume the population all widches hava a man of The 50 valuis have a mean of 71 sec and a popdation standard derviationofo 203 sec Use a0.01 sigrficance lewal to est the clakn thet the populion of aE winches has mean of 0 sec (use a two-sided shemathee) The test statistic is The P-Value s The inal conclustion is A. There is suficent evidence to warant rejection of the claim that the mean is squel to0 B. There is not sufficient evidence to warmant rejaction of the daim that the mean is equal to Note: You can esm partal credt or this probiem Pe My Aewors Submit Aewes You have anempted this problim 0 1imes You have unimited atlempts remaining Emall instructo

Answer 1

71-0 -203),60 タThere a, on0blrffi uert ewolemte.tr unrrarnt za3