The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.9 days and a standard deviation of 2.9 days." What is the z-score for a patient who takes 7 days to recover? (I have to round my answer to two decimal places) "The length of time it takes to find a parking space at 9 A.M. follows a normal distribution with a mean of 6 minutes and a standard deviation of 2 minutes" Based upon the above information and numerically justified, would you be surprised if it took less than one minute to find a parking space?
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
I need help solving these questions, please explain how you got the answer so I can learn from it.
"The patient recovery time from a particular surgical procedure is
- What is the z-score for a patient who takes 7 days to recover? (I have to round my answer to two decimal places)
"The length of time it takes to find a parking space at 9 A.M. follows a normal distribution with a mean of 6 minutes and a standard deviation of 2 minutes"
- Based upon the above information and numerically justified, would you be surprised if it took less than one minute to find a parking space?
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