Assume we are testing the null hypothesis H0: ? = 20 and the alternative Ha: ? 20, for a normal population with ? = 5. A random sample of 25 observations are drawn from the population, and we find the sample mean of these observations is = 17.6. The P-value is closest to
A. 0.0668.
B. 0.0082.
C. .0164.
D. .1336.