A manufacturer of solar power systems is doing some comparative testing of two differently designed 1.9 kWh (10 module) systems. On the basis of a sample of 52 observations, both systems, on average, produce 8.18kWh per day. The company is seeking to further develop the system that appears to produce a fairly stable amount of output above and below this measure of central tendency. System B is rejected as it displayed too much variation in output relative to system A and did so with noticeable negative skewness. Based on the data and the plots following, do you agree with this decision?

Transcribed Image Text:

System A Boxplot Output System B First Quartile 7.9092 7.3904 Median 8.1898 8.5002 Third Quartile 8.5112 8.8811 Interquartile Range 0.6020 1.4907 12 10 10 11 12 System A System B 13 14 15 16 17 18 Average daily output (kWh per day) Co