If a sample containing 30 observations is taken from a normally distributed population and a 98% confidence estimate for $\mu$ is needed,the appropriate t-score is:
A) 2.247.
B) 2.756.
C) 2.462.
D) 2.750.
E) 2.330.

Question

Quizplus · Accepted Answer

For a 98% confidence interval with 29 degrees of freedom (since n-1 = 30-1 = 29), the appropriate t-score is approximately 2.462. This value can be found in t-distribution tables or calculated using statistical software, specifically for the given confidence level and degrees of freedom.

If a Sample Containing 30 Observations Is Taken from a Normally