The time needed for college students to complete a certain paper and pencil maze follows a Normal distribution, with a mean of 70 seconds and a standard deviation of 15 seconds. You wish to see if the mean time uis changed by meditation, so you have a group of 9 college students meditate for 30 minutes and then complete the maze. You compute the average x of their times to complete the maze and will use this information to test the hypotheses

H0: u= 70, Ha: u is not equal to70 (all the u stands for miu, the mean)

at significance level alpha= 0.05. If you observe a sample mean completion time of x = 78.55, the P-value obtained is

A. between 0.01 and 0.025.
B. between 0.025 and 0.05.
C. between 0.05 and 0.10.
D. less than 0.01.