## Chinese abstract5 population mean with confidence level y (say, 90%). The acceptable percent error 6 is usually S%. It is obvious from the above-mentioned expression that if one wants to find the sample size n, he will have to follow a trial-and-error procedure. By referring to some test data
Fracture toughness of spun cast SG iron pipe
β Scribed by R. Schofield; P. Hopkins; G. Jolley
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 562 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0308-0161
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