1971
global pct
8.4
Film · 1971 · Films · 1970s
The Zodiac Killer
Two parallel scores from 21 z-qualifying reviewers and 22 raw-average reviewers. Cohort: Films · 1970s (2,406 peers).
8.4%
Z · Global
6.9%
Z · Cohort
Films · 1970s
19.5%
Raw · Global
11.5%
Raw · Cohort
Films · 1970s
Two scores · one item
Z-normalized · global
8.4Z-normalized · cohortFilms · 1970s
6.9Raw average · global
19.5Raw average · cohortFilms · 1970s
11.5Z-normalized corrects for reviewer bias (every reviewer re-centered onto their personal scale). Raw average uses simple mean across the broader pool including stddev=0 reviewers.
Where this title sits
Z-normalized percentile · 2,406 peers in Films · 1970s
| Mean reviewer z-score | -0.679 |
|---|---|
| DB1 raw-mean rating | 5.38 /10 |
| DB2 raw-mean rating | 5.36 /10 |
| 90% CI-floor (z) | -1.038 |
| Reviewers (DB1 / DB2) | 21 / 22 |
Summary
Plot summary pending — enrichment is running across all 52,376 titles in the catalog.
Pipeline applied to this title
The math, in this order
01
Z-score per reviewer
21 stddev>0 reviewers re-centered onto personal z-scale.
02
Aggregate
Mean z = -0.679. DB2 raw mean = 5.36.
03
CI-floor
90% CI-floor = -1.038. Thin samples penalized.
04
ECDF percentile
Global 8.4 / cohort 6.9. Z-track and raw-track ranked separately.
Cohort: Films · 1970s
