Statistical Summary Generator

Analyze this data and produce a statistical summary suitable for a technical report:

**Data description**: {{description}}
**Research question**: {{question}}
**Data** (CSV or description):
{{data}}

Provide:
1. **Descriptive statistics**: mean, median, std, quartiles, skewness, kurtosis
2. **Appropriate statistical test**: choose and justify the test (t-test, ANOVA, chi-square, Mann-Whitney, etc.) based on data distribution and sample size
3. **Results**: test statistic, p-value, effect size, confidence intervals
4. **Assumptions check**: normality (Shapiro-Wilk), homogeneity of variance (Levene's), independence
5. **Visualization recommendations**: which plots best communicate the findings
6. **Plain-language interpretation**: what the results mean in context of {{question}}

Output in {{language}} (Python/R) with executable code.