Mathematics, 24.07.2020 21:01, BrodsterBj
The length of needles produced by a machine has standard deviation of 0.04 inches. Assuming that the distribution is normal, how large a sample is needed to determine with a precision of ±0.005 inches the mean length of the produced needles to 98% confidence?
Answers: 1
98%
is the level of significance which is mathematically evaluated as 
%
is the critical value of 
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The length of needles produced by a machine has standard deviation of 0.04 inches. Assuming that the...
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