As player salaries have increased, the cost of attending baseball games has increased dramatically. The data below represents the cost of four tickets, two beers, four soft drinks, four hot dogs, two game programs, two baseball caps, and the parking fee for one car for each of the 30 Major League Baseball teams in 2011:
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.
As player salaries have increased, the cost of attending baseball games has increased dramatically. The data below represents the cost of four tickets, two beers, four soft drinks, four hot dogs, two game programs, two baseball caps, and the parking fee for one car for each of the 30 Major League Baseball teams in 2011:
174, 339, 259, 171, 207, 160, 130, 213, 338, 178, 184, 140, 159, 212, 121, 169, 306, 162, 161, 160, 221, 226, 160, 242, 241, 128, 223, 126, 208, 196
Decide whether the data appears to be approximately
(a) comparing data characteristics to theoretical properties.
(b) constructing a normal probability plot.
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