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What happens to the the reliability

A brake assembly has been tested and found to have a capacity that is normally distributed with a a mean of 275 lb and a stadard deviation of 25lb. If a normally distributed force having a mean of 180lb and standard deviation of 30 lb is applied, what is the static reliability? As the variability ( variance) of either the strength or load increases, what happens to the the reliability?

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## Q : Null and alternative hypotheses for testing matt claim

State the null and alternative hypotheses for testing Matt's claim. (Type the symbol "p" for the population proportion, whichever symbols you need of "<", ">", "=", "not =" and express any values as a fraction e.g. p = 1/3)