(b) Which companies are outliers according to the 1.5 × IQR rule? Calculate the IQR, and 1.5 × IQR. (Enter your answer rounded to one decimal place.) IQR = 1.5 × IQR = How many companies are outliers according to the 1.5 × IQR rule? (Enter your answers as whole numbers.)
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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The Fortune Global 500 , also known as the Global 500 , is an annual ranking of the top 500 corporations worldwide as measured by revenue. In total, the Global 500 generated $31.2 trillion in revenues in 2014. The table provides a list of the 30 companies with the highest revenues (in billions of dollars) in 2014. A stemplot or histogram shows that the distribution is strongly skewed to the right.
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