Exercise 2: Identifying the Device in "Nine Out of Ten People Loved It" — Possible Solution
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This is primarily BANDWAGON - it urges the reader to join in ("join
them today!") specifically because a large number of other people
have already accepted the product, rather than providing direct
evidence about the product's own actual qualities. The appeal rests on
social conformity ("everyone else already likes this") rather than on
verifiable claims about the product itself.

The specific missing information needed to actually evaluate the
underlying claim:

1. The real sample size and selection method - "nine out of ten" out
   of how many people, selected how? A genuinely small or
   non-representative sample (echoing Research Methodology's own
   sampling material) could make this figure meaningless even if
   technically accurate.

2. How "loved it" was actually measured - a specific survey question
   with defined response options, or a vague, unverifiable summary of
   informal reactions?

3. Whether the testers were a representative, independent sample of
   real customers, or were selected in a way that likely skewed toward
   already-favorable opinions (for example, only surveying repeat
   customers rather than a broad audience).

Without this information, "nine out of ten" functions purely as a
bandwagon appeal rather than genuine, checkable evidence about the
product's real quality.

ANSWER: This is the bandwagon device - it appeals to the fact that
others have already accepted the product rather than providing direct
evidence about its quality. To actually evaluate the claim, you'd need
the real sample size and selection method, how "loved it" was
specifically measured, and whether the sampled testers were genuinely
representative rather than selected in a way likely to skew favorable.

WHY THIS WORKS AS AN ANSWER
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This correctly identifies bandwagon from the chapter's own seven real
devices and names specific, concrete missing information needed to
evaluate the claim, rather than a vague call for "more evidence."