Three specimens of high-quality concrete had compressive strength 357, 359, 413 [kg/cm 2 ], and for three
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Three specimens of high-quality concrete had compressive strength 357, 359, 413 [kg/cm2], and for three specimens of ordinary concrete the values were 346, 358, 302. Test for equality of the population means, μ1 = μ2, against the alternative μ1 > μ2. Assume normality and equality of variance. Choose α = 5%
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