If a sample containing 12 observations is taken from a normally distributed population and a 99% confidence estimate for $\mu$ is needed,the appropriate t-score is:
A) 2.681.
B) 2.718.
C) 3.169.
D) 3.055.
E) 3.106.

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The Answer of If a sample containing 12 observations is taken from a normally distributed population and a 99% confidence estimate for $\mu$ is needed,the appropriate t-score is:
A) 2.681.
B) 2.718.
C) 3.169.
D) 3.055.
E) 3.106.

If a Sample Containing 12 Observations Is Taken from a Normally