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The 95% confidence limits of mean yarn tenacity (cN/tex) based on 100 test samples is 30 ± 1.5

The 95% confidence limits of mean yarn tenacity (cN/tex) based on 100 test samples is 30 ± 1.5

Q. The 95% confidence limits of mean yarn tenacity (cN/tex) based on 100 test samples is 30 ± 1.5. The number of test samples required to obtain 95% confidence limits of 30 ± 0.5 is     .

Ans: 900-900

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