The mean number of hours of sleep that a college student gets per night is 6 hours with a standard deviation of 3 hours. A random sample of forty students is observed. It is of interest to determine the probability that a single student gets less than 5 hours of sleep at night. Identify the correct formula for solving. O P(X < 5) = P (Z < ) (6-5) P(X < 5) = P (Z < P (X < 5) = P (z < (5-6) O P(X < 5) = P (z < "„) (5-6) P (X < 5) = P (z < ) P(X < 3) = P (z < ) (6-5) (5-6) V40 P (X < 5) = P (2 < ) (5-6) None of the above /Unable to solve

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