Which statement is true for a t-distribution?
A. It is a positively skewed curve.
B. It is a single curve determined by the sample size.
C. It is very close to the standard normal distribution when d.f. >= 30.
D. None of the above.
Answer:C
Which statement is true for a t-distribution?
A. It is a positively skewed curve. B. It is a single curve determined by the sample size. C. It is very close to the standard normal distribution when d.f. >= 30. D. None of the above.