Calculating estimated score: Can I have 200000 more customers in same category...?

[Rv02]

I have two sets of customers A and B and I measure satisfaction score based on their response to the questionnaire.
I need help with the following calculation.
I have 1 million customers in category A out of 8 million total customerd who 15% of them receive a questionnaire and 5 % respond back. Their score takes the overall satisfaction score for all customets combined by 0.8 to 30.4. What I need to work out is if I can have 200000 more customers in the same category A to estimate how much the scores would improve

 

[Deleted member 4993]

I have two sets of customers A and B and I measure satisfaction score based on their response to the questionnaire.
I need help with the following calculation.
I have 1 million customers in category A out of 8 million total customerd who 15% of them receive a questionnaire and 5 % respond back. Their score takes the overall satisfaction score for all customets combined by 0.8 to 30.4. What I need to work out is if I can have 200000 more customers in the same category A to estimate how much the scores would improve

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