Please be inform the CS Survey Result of Ramindra BP in Apr. is 8.80, this score is not good (and the lowest score since we made survey) as Ramindra could not supply enough "Light Repair" customers for April survey, then more "Medium repair" customers were random in order to complete 30 samples size.
Anyway, after average the CS score in each group, Heavy, Medium and Light repair, you can find the score as follows :
Group No. of Samples Score
Heavy 4 7.89
Medium 15 9.04
Light 11 8.81
It was found that more sample size of Medium, but average score is still higher than Light repair, sample size may not the main reason to make the score low.
K. Apichart & K. Panom are requested to review customers' comments and make imp