From a purely statistical perspective, might 100 accounts a day be sufficient? For a quarterly estimate, 9000 samples (assuming the 100 samples are accumulated)

From a purely statistical perspective, might 100 accounts a day be sufficient? For a quarterly estimate, 9000 samples (assuming the 100 samples are accumulated) seems like it can give fairly tight error bars - if you have 90 samples with a sample mean of 5 and a sample standard deviation of 2 (no idea what the standard deviation is, so consider that a placeholder), then the 99% confidence interval is [4.46, 5.54] according to this website [0]. Not the most precise boundaries, but perhaps good enough for investors. Granted, it's been a while since I've done stats, so I wouldn't be surprised if this were an inaccurate application, but if it's accurate 100 samples a day doesn't sound that crazy. [0]: https://www.socscistatistics.com/confidenceinterval/default3.aspx https://www.socscistatistics.com/confidenceinterval/default3...