Coverage tests for the two-pointing configuration and the model defined in Eq. (4). All the panels show the median of the inferred posterior distribution as a function of the true input value. The panels show the recovery tests for the Mach number ℳ_3D = σ_v/c_s (left), the slope of the turbulent cascade α (middle), and the logarithm of the injection wave number k_inj, in units of kpc⁻¹ (right). The gray dots show the results of individual simulations, whereas the color code indicates the point density inferred using a Gaussian kernel density estimator. The dotted black lines and the red dashed lines indicate the 1:1 relation and the running median of the data points, respectively.