Question

In: Statistics and Probability

The patient recovery time from a particular surgical procedure is normally distributed with a mean of...

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 3 days and a standard deviation of 1.5 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 4.8 days to recover?

d. What is the probability of spending more than 4 days in recovery? e. What is the probability of spending between 2.8 and 3.4 days in recovery? f. The 70th percentile for recovery times is days.

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

The patient recovery time from a particular surgical procedure is normally distributed with a mean of...
The patient recovery time from a particular surgical procedure is normally distributed with a mean of 4 days and a standard deviation of 1.6 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 5.3 days to recover? d. What is...
The patient recovery time from a particular surgical procedure is normally distributed with a mean of...
The patient recovery time from a particular surgical procedure is normally distributed with a mean of 3 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 4.4 days to recover? d. What is...
The patient recovery time from a particular surgical procedure is normally distributed with a mean of...
The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.3 days and a standard deviation of 1.8 days. What is the 85th percentile for recovery times? (Round your answer to two decimal places.)
The patient recovery time from a particular surgical procedure is normally distributed with a mean of...
The patient recovery time from a particular surgical procedure is normally distributed with a mean of 3 days and a standard deviation of 2 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 4.1 days to recover? d. What is the...
The patient recovery time from a particular surgical procedure is normally distributed with a mean of...
The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.3 days and a standard deviation of 2.1 days. Sketch a graph of the distribution indicating the mean and +/- 3 standard deviation with vertical lines. What is the probability of a recovery taking longer than 7 days? P(4.75 days < x < 6.25 days) = ? P(x < 2 days) = ? What is the expected recovery time for the first quartile of...
The patient recovery time from a particular surgical procedure is normally distributed with a mean of...
The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.6 days and a standard deviation of 1.8 days. What is the probability of spending more than 4 days in recovery? (Round your answer to four decimal places.) I have been stuck on this question for an hour.
The patient recovery time from a particular procedure is normally distributed with a mean of 5.2...
The patient recovery time from a particular procedure is normally distributed with a mean of 5.2 days and a standard deviation of 1.8 days. what is the probability of spending more than 2 days in recovery? (round your answer to four decimal places)
A particular surgical procedure has a long recovery time. A team of researchers carry out atest...
A particular surgical procedure has a long recovery time. A team of researchers carry out atest for a drug known to promote tissue repair could reduce the recovery time. They recruite75 volunteers who agreed to take part in a double blind trial following their surgery. Two thirds of these patients were given the active drug and the remaining third were given thea placebo. The researchers hope to find evidence that the drug is correlated with shorterrecovery times. They are aware...
Times for a surgical procedure are normally distributed. There are two methods. Method A has a...
Times for a surgical procedure are normally distributed. There are two methods. Method A has a mean of 35 minutes and a standard deviation of 4 minutes, while Method B has a mean of 39 minutes and a standard deviation of 20 minutes. (a) Which procedure is preferred if the procedure must be completed within 35 minutes? Method A, Method B, or Either? (b) Which procedure is preferred if the procedure must be completed within 45.0 minutes? Method A, Method...
Times for a surgical procedure are normally distributed. There are two methods. Method A has a...
Times for a surgical procedure are normally distributed. There are two methods. Method A has a mean of 25 minutes and a standard deviation of 6 minutes, while method B has a mean of 29 minutes and a standard deviation of 3.0 minutes. (a) Which procedure is preferred if the procedure must be completed within 25 minutes? Method A Method B Either Method (b) Which procedure is preferred if the procedure must be completed within 35.0 minutes? Method A Method...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT