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I have a sample size of 50, a total of 6078.3. an average of 121.566 a standard deviation of 6.97725. I need to know the

I have a sample size of 50, a total of 6078.3. an average of 121.566 a standard deviation of 6.97725. I need to know the margin of error, and the confidence level for 80% and 99%. I am unsure of the formula I use. Can someone help me with it?

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