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Automotive

Snail Car Horn Kit Electric Train Horn for Car with Compressor (Yellow)

Automotive3.9· 3,692 Amazon ratings

Bias-adjusted across 3,692 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Automotive.

7.0%
Percentile · Global
6.2%
Percentile · Cohort
Automotive
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Snail Car Horn Kit Electric Train Horn for Car with Compressor (Yellow)

How the score was built

Amazon ratings
3,692

used for the Bayesian percentile

Raw star average
3.9 / 5

unadjusted Amazon mean

Bayesian avg
3.91

raw rating shrunk to the category prior

Reviewer-graph z
-0.707

bias-corrected vs. each reviewer's baseline (0 qualifying)

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Same category · Automotive

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