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Mathematics, 26.06.2020 15:01 andrea021098
Someone claims that the breaking strength of their climbing rope is 2,000 psi, with a standard deviation of 10 psi. We think the actual amount is lower than that and want to run the test at an alpha level of 5%. What would our sample size need to be if we want to reject the null hypothesis if the sample mean is at or below 1,997.2956?
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Someone claims that the breaking strength of their climbing rope is 2,000 psi, with a standard devia...
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