Post #1825469

@ki_sekiya 2/2 Not convinced by the stats in the article. I thought that a random sample of +70 ispections would usually provide accurate reliable conclusions. ".. the Clean Energy Regulator carried out 1,278 compliance inspections. ... The sample size in the regulator’s report is small – 0.5% of the total number of systems installed. With such a small sample size, i t is hard to extrapolate the level of installation non-compliance across all systems in Australia." #Statistics #SampleSize