Tests Suppose a geyser has a mean time between eruptions of 84 minutes. Let the interval of time between the eruptions be normally distributed with standard deviation 25 minutes. Complete parts (a) through (e) below. Activity k (a) What is the probability that a randomly selected time interval between eruptions is longer than 94 minutes? The probability that a randomly selected time interval is longer than 94 minutes is approximately 0.3446. ok (Round to four decimal places as needed.) ach (b) What is the probability that a random sample of 15 time intervals between eruptions has a mean longer than 94 minutes? The probability that the mean of a random sample of 15 time intervals is more than 94 minutes is approximately Conten In (Round to four decimal places as needed.) or Succes edia Lib ase Option sions e Tools