Downloaded from https://www.everyspec.com AMCP 7M 19 ad Compute 6. ZA-AS-31,000-30,000-1000. frA - Jr* 7. Compare (XA -X2) to U. 7. .o00 > 96. The redesigned fuse has a greater mean life than the original one at 90% level of a- confidence. The difference is s-significant at the 10% level, indeed, it is e-signifi- cank at the 0.5% level (and probably at any feastble level). But ts it significant, i. e., to it Important in an engineering sense? The improvement ts small, approximately _4 8% in mean life. There might be a slight degradation in standard deviation, although not an important one.
If the new design has any disadvantages At all, it may be better to leave things as they atri; 3% to a small change, it could be lost, for oeample, in month-to-month or batch-to-batch variations. 0 I I' Jill ~ ~