If a sample containing 12 observations is taken from a normally ...

[misspop]

If a sample containing 12 observations is taken from a normally distributed population and a 99 confidence estimate for  is needed, the appropriate t-score is:
 a. 2.681.
  b. 2.718.
  c. 3.169.
  d. 3.055.
  e. 3.106.

Question 2

If a sample containing 30 observations is taken from a normally distributed population and a 98 confidence estimate for  is needed, the appropriate t-score is:
 a. 2.247.
  b. 2.756.
  c. 2.462.
  d. 2.750.
  e. 2.330.

[joneynes]

Answer to Question 1

E

Answer to Question 2

C