Use the following cell phone airport data speeds (Mbps) from a particular network. Find the percentile corresponding to the data speed 12.5 Mbps. 0.2 0.4 0.5 0.1 0.3 0.4 0.5 0.5 0.6 0.6 0.6 D 0.7 0.7 0.7 0.7 0.8 0.8 0.8 1.1 1.2 1.6 1.6 1.9 2.1 2.3 2.5 2.5 2.5 2.8 2.8 3.4 3.9 4.6 5.1 5.2 6.5 7.4 7.6 8.3 9.4 10.1 10.2 10.7 11.2 11.3 12.5 12.9 13.3 13.8 14.4 27.7 Percentile of 12.5 = (Round to the nearest whole number as needed.)
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.
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