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Question: 6312 nine measurements are taken on the strength of a...

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6.3-12. Nine measurements are taken on the strength of a certain metal. In order, they are 7.2, 8.9, 9.7, 10.5, 10.9,
11.7, 12.9, 13.9, 15.3, and these values correspond to the 10th, 20th, ..., 90th percentiles of this sample. Construct a q-q plot of the measurements against the same per- centiles of N(0,1). Does it seem reasonable that the underlying distribution of strengths could be normal?
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