Using the data from the 2018 professional baseball season, the American League (AL) had 10 players bat over .300 out of 179 players who played at least 82 games. In the national League (NL), there were 10 players who batted over .300 out of 196 players who played at least 82 games. Find a 90% confidence interval for the difference in porportion of .300+ hitters in the AL and NL.
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.
Using the data from the 2018 professional baseball season, the American League (AL) had 10 players bat over .300 out of 179 players who played at least 82 games. In the national League (NL), there were 10 players who batted over .300 out of 196 players who played at least 82 games. Find a 90% confidence interval for the difference in porportion of .300+ hitters in the AL and NL.
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