So I have this huge pool of data, around 1000 rows in excel. I randomly checked 30 rows and they were all correct. How sure can I be that all rows are correct?
If that probability is not zero, how do I assign probabilities to error counts, namely how likely is it that there's just one error based on the above observation, or two for that matter and so on.
Also the reverse must also be a valid question, right? If all 30 were wrong instead of correct, then there must be some odds that at least one other is correct?