To compare two brands of radial tires, 50 tires of each brand were tested and the following sample mean lifetimes (in ki

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To Compare Two Brands Of Radial Tires 50 Tires Of Each Brand Were Tested And The Following Sample Mean Lifetimes In Ki 1 (59.92 KiB) Viewed 106 times

To compare two brands of radial tires, 50 tires of each brand were tested and the following sample mean lifetimes (in kilometres) and sample standard deviations for each of the two brands were obtained: m = 50 = Brand A Brand B ī = 65, 600 S1 5000 y = 61,500 $2 = 7200 n = 50 a Compute the upper limit of a 99% confidence interval for Mi M2 where Mi is the true mean lifetimes of Brand A tires and up is the true mean lifetimes of Brand B tires.