How many tissues should the Kimberly Clark Corporation package of Kleenex@ contain? Researchers determined that 45 tissues is the average number of tissues used during a cold. Suppose a random sample of 36 Kleenex@ users yielded the following data on the number of tissues used during a cold: x = 40.7, s = 15. Researchers want to conduct a test to determine if the average number of tissues used during a cold is less than 45. State the correct rejection rule for a level of significance at a = 0.05. Select one: O Reject Ho if Zcalc Zcrit or Zcalc tcrit or tcalc Zcrit O Reject Ho if tcalc > terit- Check