Which of following statements are true in testing H-naught: mu=275 vs H-alternate: mu > 275 based upon a sample of size 15 from a normal population with unknown standard deviation, sigma?
A. The test process needs the use of standard normal distribution.
B. The test procedure needs the employ of binomial distribution.
C. The test procedure needs the employ of exponential distribution.
D. The test procedure needs the employ of t-distribution with 14 degrees of freedom.
E. None of the above statements are true.