A researcher wants to estimate the mean weight of a certain species of fish. The population standard deviation is known to be $3.2$ grams. If the sample size is $64$ and the confidence level is $99\%$, what is the margin of error for this estimate?

• A. $1.0304$
• B. $1.304$
• C. $10.304$
• D. $1.3400$

Answer: (A)