Mathematics, 23.09.2019 20:00 kritalewis
Two kinds of thread are being compared for strength. fifty pieces of each type of thread are tested under similar conditions. brand a has an average tensile strength of 78.3 kilograms with a standard deviation of 5.6 kilograms, while brand b has an average tensile strength of 87.2 kilograms with a standard deviation of 6.3 kilograms. construct a 95% confidence interval for the difference of the population means.
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Two kinds of thread are being compared for strength. fifty pieces of each type of thread are tested...
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