Advertising ($billions) Advertising ($billions) Company Company Procter & Gamble Comcast $5.00 3.08 American Express General Motors Toyota Fiat Chrysler Walt Disney Company J.P Morgan $2.19 2.15 AT&T 2.91 2.09 Ford Verizon L'Oreal 2.56 2.44 2.34 1.97 1.96 1.88
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.
Which companies spend the most money on advertising? Business insider maintains a list of the top-spending companies. In 2014, Procter & gamble spent more than any other company, a whopping $5billion.In second place was Comcast, which spent $3.08 billion (Business Insider website, December 2014). The top 12 companies and the amount each spent on advertising in billions of dollars are as follows.
a. What is the mean amount spent on advertising?
b. What is the median amount spent on advertising?
c.What are the first and third
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