1977
global pct
71.0
Film · 1977 · Films · 1970s
Black Sunday
Two parallel scores from 90 z-qualifying reviewers and 92 raw-average reviewers. Cohort: Films · 1970s (2,406 peers).
71.0%
Z · Global
63.5%
Z · Cohort
Films · 1970s
62.3%
Raw · Global
59.3%
Raw · Cohort
Films · 1970s
Two scores · one item
Z-normalized · global
71.0Z-normalized · cohortFilms · 1970s
63.5Raw average · global
62.3Raw average · cohortFilms · 1970s
59.3Z-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 | +0.249 |
|---|---|
| DB1 raw-mean rating | 7.10 /10 |
| DB2 raw-mean rating | 7.15 /10 |
| 90% CI-floor (z) | +0.076 |
| Reviewers (DB1 / DB2) | 90 / 92 |
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
90 stddev>0 reviewers re-centered onto personal z-scale.
02
Aggregate
Mean z = +0.249. DB2 raw mean = 7.15.
03
CI-floor
90% CI-floor = +0.076. Thin samples penalized.
04
ECDF percentile
Global 71 / cohort 63.5. Z-track and raw-track ranked separately.
Cohort: Films · 1970s
