Data: 160 cells from 16 mice (8 per group)
Fixed effect, drug - vehicle: 1.482 (SE 0.762; normal-approximation (Wald z) 95% CI -0.011 to 2.975)
statsmodels Wald z-test: z = 1.95, p = 0.0516
Random effects: between-mouse SD 1.259; residual (between-cell) SD 2.712; ICC 0.177
R-squared (Nakagawa & Schielzeth): marginal 0.058, conditional 0.225
Check: t-test on the 16 mouse means: difference 1.482, t(14) = 1.95, p = 0.0720