To study the effect of curing temperature on shear strength of a certain rubber compound, 75.0 specimens were cured at 150°C and90.0 were cured at 130°C. The specimens cured at 150°C had an average shear strength of 620 psi, with a standard deviation of 20psi. Those cured at 130°C had an average shear strength of 750 psi, with a standard deviation of 30 psi. Let μx represent thepopulation mean strength for the specimens cured at 130°C and let μy represent the population mean strength for the specimenscured at 150°C. Find a 95% confidence interval for the difference μx - μy (Round the final answers to three decimal places.)

Let be the population mean strength for the specimens cured at 130 degrees Celsius and 150 degrees…

Answered: population mean strength for the…

MATLAB: An Introduction with Applications

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Author:Amos Gilat

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population mean strength for the specimens cured at 130°C and let μy represent the population mean strength for the specimens cured at 150°C. Find a 95% confidence interval for the difference μly fly. (Round the final answers to three decimal places.)