question 17 The patient recovery time from a particular surgical procedure is normally distributed with a mean of 4 days and a standard deviation of 1.9 days. Let X be the recovery time for a randomly...

question 17

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 4 days and a standard deviation of 1.9 days. Let X be the recovery time for a randomly selected patient. Round all answers to 4 decimal places where possible.


a. What is the distribution of X? X ~ N(___,___)


b. What is the median recovery time?  days


c. What is the Z-score for a patient that took 5.2 days to recover?


d. What is the probability of spending more than 3.7 days in recovery?


e. What is the probability of spending between 3.2 and 4 days in recovery?


f. The 80th percentile for recovery times is  _____days.