statistical-significance-calculator

Statistical Significance Calculator - Auto-activating skill for Data Analytics. Triggers on: statistical significance calculator, statistical significance calculator Part of the Data Analytics skill category.

1.02x

Quality

Does it follow best practices?

Impact

94%

1.02x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Optimize this skill with Tessl

npx tessl skill review --optimize ./planned-skills/generated/12-data-analytics/statistical-significance-calculator/SKILL.md

Evaluation results

88%

-10%

E-Commerce Checkout Flow A/B Test Analysis

Step-by-step A/B test significance analysis

Criteria

Without context

With context

Step-by-step breakdown

100%

Null hypothesis stated

100%

Alternative hypothesis stated

100%

Correct test selected

100%

P-value reported

100%

Significance threshold applied

100%

Effect size or confidence interval

100%

Sample size / power validation

100%

Production-ready code

80%

60%

Results output artifact

100%

Business interpretation

100%

96%

-2%

Customer Satisfaction Survey: Regional Differences Analysis

Assumption validation and output standards

Criteria

Without context

With context

Correct test selection

100%

Assumption: expected cell counts

100%

Assumption: independence

100%

Test statistic reported

100%

Degrees of freedom reported

100%

P-value reported

100%

Step-by-step structure

100%

Stats output artifact

100%

Production code structure

100%

Conditional conclusion

77%

55%

Business interpretation

100%

20%

Marketing Campaign Performance: Significance Testing from Database Records

SQL-driven significance testing with visualization

Criteria

Without context

With context

SQL extraction file

100%

SQL used in script

100%

Correct statistical test

100%

P-value in results

100%

Confidence interval in results

100%

Conversion rates in results

100%

Visualization produced

100%

Chart shows significance

100%

Step-by-step structure in script

100%

Output validation

100%

Significance threshold applied

100%

Repository: jeremylongshore/claude-code-plugins-plus-skills
Commit: 933cf26

Evaluated: about 1 month ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

E-Commerce Checkout Flow A/B Test Analysis Customer Satisfaction Survey: Regional Differences Analysis Marketing Campaign Performance: Significance Testing from Database Records

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