The Myer-Briggs assessment is designed to measure psychological preferences in how people perceive the world and make decisions. A randomly selected group of Engineering students were given the test, and the results are as shown below. Myer-Briggs Preference Number of Engineering Students Introvert/Intuitive Extrovert/Intuitive 64 82 Introvert/Sensing Extrovert/Sensing 58 45 Total 249 Researchers want to determine whether there is any significant difference, at the 5% level of significance, between the Myer-Briggs categories.The chi-square statistic for this test is 11.39. The df/critical value/conclusion for this test are:
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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