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Mathematics, 10.03.2020 17:53 tegaoks6843
Two brands of AAA batteries are tested in order to compare their voltage. The data summary can be found below. Find the 93% confidence interval of the true difference in the means of their voltage. Assume that both variables are normally distributed. Brand X Brand Y Xi = 9.2 volts 0 = 0.3 volt ni = 27 X2 = 8.8 volts 02 = 0.1 volt na = 30
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