Question: b Suppose a geyser has a mean time between eruptions of 75 minutes. Let the interval of time between the eruptions be normally distributed with

Suppose a geyser has a mean time between eruptions of 75 minutes. Let the interval of time between the eruptions be normally distributed with standard deviation 16 minutes. Complete parts (a) through (@) below. (a) What is the probability that a randomly selected time interval between eruptions is longer than 83 minutes? The probability that a randomly selected time interval is longer than 83 minutes is approximately 0.3085 (Round to four decimal places as needed.) (b) What is the probability that a random sample of 7 time intervals between eruptions has a mean longer than 83 minutes? The probability that the mean of a random sample of 7 time intervals is more than 63 minutes is approximately 0. (Round to four decimal places as needed.) en on

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