Which of the following statements is true?
A)	If a sample has 16 observations and a 90% confidence estimate for is needed, the appropriate t-score is 1.753.
B)	If a sample has 16 observations and a 99% confidence estimate for is needed, the appropriate t-score is 2.602.
C)	If a sample has 20 observations and a 95% confidence estimate for is needed, the appropriate t-score is 1.729.
D)	If a sample has 20 observations and a 98% confidence estimate for is needed, the appropriate t-score is 2.093.
Answer:A
Which of the following statements is true?
A)	If a sample has 16 observations and a 90% confidence estimate for is needed, the appropriate t-score is 1.753. B)	If a sample has 16 observations and a 99% confidence estimate for is needed, the appropriate t-score is 2.602. C)	If a sample has 20 observations and a 95% confidence estimate for is needed, the appropriate t-score is 1.729. D)	If a sample has 20 observations and a 98% confidence estimate for is needed, the appropriate t-score is 2.093.