A paper bridge should hold at least 6 counters. The original holds [4, 5, 4] counters in three trials; after folding a side rail it holds [7, 8, 7]. What do these trials support?
Answer & why
Answer: The revised model met the load target in all three recorded trials.
All revised results are at least 6; all original results are below it. The evidence supports this tested revision under these conditions, not an unlimited guarantee.
A paper bridge should hold at least 5 counters. The original holds [3, 4, 3] counters in three trials; after folding a side rail it holds [6, 7, 6]. What do these trials support?
The original met the target in all three trials.
The revised model met the load target in all three recorded trials.
The results prove every possible side rail is best.
The revision is guaranteed never to fail.
A hint
Compare every recorded trial with the success target; keep the conclusion within the evidence.
Answer & why
Answer: The revised model met the load target in all three recorded trials.
All revised results are at least 5; all original results are below it. The evidence supports this tested revision under these conditions, not an unlimited guarantee.
A paper bridge should hold at least 7 counters. The original holds [5, 6, 5] counters in three trials; after folding a side rail it holds [9, 8, 9]. What do these trials support?
The revision is guaranteed never to fail.
The results prove every possible side rail is best.
The revised model met the load target in all three recorded trials.
The original met the target in all three trials.
A hint
Compare every recorded trial with the success target; keep the conclusion within the evidence.
Answer & why
Answer: The revised model met the load target in all three recorded trials.
All revised results are at least 7; all original results are below it. The evidence supports this tested revision under these conditions, not an unlimited guarantee.
A paper bridge should hold at least 8 counters. The original holds [7, 6, 7] counters in three trials; after folding a side rail it holds [10, 9, 10]. What do these trials support?
The original met the target in all three trials.
The revised model met the load target in all three recorded trials.
The results prove every possible side rail is best.
The revision is guaranteed never to fail.
A hint
Compare every recorded trial with the success target; keep the conclusion within the evidence.
Answer & why
Answer: The revised model met the load target in all three recorded trials.
All revised results are at least 8; all original results are below it. The evidence supports this tested revision under these conditions, not an unlimited guarantee.
A paper bridge should hold at least 4 counters. The original holds [2, 3, 2] counters in three trials; after folding a side rail it holds [5, 6, 5]. What do these trials support?
The results prove every possible side rail is best.
The revision is guaranteed never to fail.
The original met the target in all three trials.
The revised model met the load target in all three recorded trials.
A hint
Compare every recorded trial with the success target; keep the conclusion within the evidence.
Answer & why
Answer: The revised model met the load target in all three recorded trials.
All revised results are at least 4; all original results are below it. The evidence supports this tested revision under these conditions, not an unlimited guarantee.
A paper bridge should hold at least 6 counters. The original holds [4, 5, 4] counters in three trials; after folding a side rail it holds [7, 8, 7]. What do these trials support?
The revised model met the load target in all three recorded trials.
The revision is guaranteed never to fail.
The original met the target in all three trials.
The results prove every possible side rail is best.
A hint
Compare every recorded trial with the success target; keep the conclusion within the evidence.
Answer & why
Answer: The revised model met the load target in all three recorded trials.
All revised results are at least 6; all original results are below it. The evidence supports this tested revision under these conditions, not an unlimited guarantee.
A paper bridge should hold at least 7 counters. The original holds [6, 5, 6] counters in three trials; after folding a side rail it holds [8, 9, 8]. What do these trials support?
The revision is guaranteed never to fail.
The original met the target in all three trials.
The revised model met the load target in all three recorded trials.
The results prove every possible side rail is best.
A hint
Compare every recorded trial with the success target; keep the conclusion within the evidence.
Answer & why
Answer: The revised model met the load target in all three recorded trials.
All revised results are at least 7; all original results are below it. The evidence supports this tested revision under these conditions, not an unlimited guarantee.
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