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regression testing is a white box testng
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Hi All, I think the answer for this question is, Testing method :Verification(review) and Validation Testing types : Basically static and dynamic-> in dynamic testing further can be classified into structural(white box) and functional(black box) testing Testing Technique : in white box testing we have 1) loop coverage 2)statement coverage 3) condition coverage 4) decision coverage in black box testing we have 1) Equilance partioning, 2)boundary value analysis 3) error guessing Testing Levels : Unit testing, integration testing systemtesting , Acceptance testing
forming a hypothesis is when you come up with an educated guess.. what you think it may be . testing a hypothesis is when you're testing to see if someone else's guess is right.
hardness as it is measured on a rockwell or brinell testing instrument
I really don't know what the hardness of Cinder is but by testing it I think it has a hardness of 4
Correlation is a way of testing whether there is a linear relationship between two variables of their transformed versions. If there is no correlation then all that it means is that there is no linear relationship between the two or between their transformed versions. It certainly does not mean that there is no relationship. For example, if y = a*x^2 + b where a and b are constants then, because of symmetry, the correlation between x and y is 0.
You are testing the relative hardness of the mineral.
Hardness
Tablet hardness testing became available in the 1930's. Tablet hardness testing, is a technique used by the pharmaceutical industry to test the breaking point for the use, transportation, and storage of supplies.
Talc (a common metamorphic mineral).
Hardness
The Mohs Scale
Converting between different hardness scales is not an exact science, but there are many charts available that will show the approximate relationship between different scales. One chart is available at http://www.carbidedepot.com/formulas-hardness.htm Another useful website for converting between different hardness scales is http://www.efunda.com/units/hardness/convert_hardness.cfm Tianxing Testing Instruments Co. Ltd. is a professional manufacturer of portable hardness testers http://www.hardnesstesters.biz/
The main difference between water and ecowater is the hardness rating difference. For water testing and filter options, see your local water specialist.
That is testing the hardness.