Every two weeks a solar panel company selects fifty of their

Last updated: 5/21/2023

Every two weeks a solar panel company selects fifty of their modules and measures their power output The most recent test gave an average of 320 watts with a 95 confidence interval of 315 325 If they don t update their manufacturing process or design about how many times a year will a sample have an average power outside this range 01 03 05 0 10