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Average percentage of aluminum oxide

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An article in Archaeometry involved an analysis of 48 samples of Romano-Britishpottery, found at four different kiln sites in the United Kingdom. The samples were analyzed todetermine their chemical-composition. The percentage of aluminum oxide found in the samplesof two sites is shown below

Island Thorns Ashley Rails18.3 17.715.8 18.318.0 16.718.0 14.820.8 19.1

Do the data provide sufficient information to indicate that there is a difference in the average percentage of aluminum oxide at the two sites? Test at the 5% level ofsignificance.b. Find the approximate p-value for the test.

Reference no: EM131320046

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