Physics, 06.11.2019 02:31 struckedblazing
Acertain type of thread is manufactured with a mean tensile strength of 78.8 kilograms and a standard deviation of 7.2 kilograms. how is the variance of the sample mean changed when the sample size is (a) increased from 64 to 324? (b) decreased from 256 to 81?
Answers: 2
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Acertain type of thread is manufactured with a mean tensile strength of 78.8 kilograms and a standar...
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