M
Dear friends,
Please advise a pondering quality engineer with this perhaps simple question.
We are doing tensile strength tests of soldered joints on a steel wire.
When I perform different tests of normality, the results are indicating normality but not with a certainty I'm satisfied with. Since the tests are destructive and expensive it's hard to achieve extensive amount of data to base conclusions on.
May I expect the results from a tensile test to be normally distributed or something else, like Weibull? Logically there is an absolute possible Min. (e.g. zero) and Max. value for a strength distribution. Does a normal distrubition requires a probability >0 for any value or how do I handle a discontinued distrubition? Is it even possible to determine an "absolute Min."?
Thanks for any input in advance,
Matthew
Please advise a pondering quality engineer with this perhaps simple question.
We are doing tensile strength tests of soldered joints on a steel wire.
When I perform different tests of normality, the results are indicating normality but not with a certainty I'm satisfied with. Since the tests are destructive and expensive it's hard to achieve extensive amount of data to base conclusions on.
May I expect the results from a tensile test to be normally distributed or something else, like Weibull? Logically there is an absolute possible Min. (e.g. zero) and Max. value for a strength distribution. Does a normal distrubition requires a probability >0 for any value or how do I handle a discontinued distrubition? Is it even possible to determine an "absolute Min."?
Thanks for any input in advance,
Matthew
Whereabouts?
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