The time needed for high school juniors to do certain paper and pencil maze follows a Normal distribution with a mean of 80 seconds and a standard deviation of 16 seconds. You wish to see if the mean time is changed by meditation, so you have a group of 8 high school seniors meditate for 30 minutes and then complete the maze. It takes them an average of 74 seconds to complete the maze. Use this information to test the hypotheses

H0: = 80, Ha: 80

at significance level = 0.02. You conclude that

options:

this is a borderline case and no decision should be made.

Ha should be accepted.

H0 should be rejected.

H0 should not be rejected.