Long description

The image shows a bell curve representing a standard normal distribution, with a z-statistic of 2.58 marked on the far right side of the curve. The shaded area under the curve, covering 99.51% of the total area, represents the cumulative probability up to the z-value of 2.58. The remaining 0.49% of the area, located beyond the z-statistic, corresponds to the p-value.