To decide whether two different types of steel have the sametrue average fracture
Chapter 9, Problem 16(choose chapter or problem)
To decide whether two different types of steel have the sametrue average fracture toughness values, n specimens of eachtype are tested, yielding the following results:Type Sample Average Sample SD1 60.1 1.02 59.9 1.0Calculate the P-value for the appropriate two-sample z test,assuming that the data was based on . Then repeatthe calculation for . Is the small P-value forindicative of a difference that has practical significance?Would you have been satisfied with just a report ofthe P-value? Comment briefly.
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