To decide whether two different types of steel have the

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Reference no: EM13628848

To decide whether two different types of steel have the same true average fracture toughness values, n specimens of each type are tested, yielding the following results.

Type	Sample Average	Sample SD
1	60.9	1.0
2	60.7	1.0

Calculate the P-value for the appropriate two-sample z test, assuming that the data was based on n = 100. (Round your answer to four decimal places.)

Calculate the P-value for the appropriate two-sample z test, assuming that the data was based on n = 500. (Round your answer to four decimal places.)

Is the small P-value for n = 500 indicative of a difference that has practical significance? Would you have been satisfied with just a report of the P-value? Comment briefly.

Reference no: EM13628848

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