The following table shows the number of prescriptions a doctor wrote each day for a 36-day period. Use the median procedure for finding quartiles to find the first, second, and third quartiles for the data. After this, construct the box-and-whisker plots. Number of Prescriptions Written per Day 8 7 11 9 10 14 12 14 12 14 14 10 14 10 8 15 8 9 10 7 14 12 7 15 9 11 13 10 12 10 16 16 10 8 15 12
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.
The following table shows the number of prescriptions a doctor wrote each day for a 36-day period. Use the
Number of Prescriptions Written per Day
8 7 11 9 10 14
12 14 12 14 14 10
14 10 8 15 8 9
10 7 14 12 7 15
9 11 13 10 12 10
16 16 10 8 15 12
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