To qualify for a Master’s degree program in Business Administration at San Sebastian College, candidates must score in the Top 20% on a mental ability test. The test has a mean of 180 and a standard deviation of 25. Find the lowest possible score to qualify. Assume the test scores are normally distributed. [HINTs: 1.)Using the z-table you can verify that Top 20% implies z=0.84…2.)Find the x-value corresponding to z=0.84.]
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.
To qualify for a Master’s degree program in Business Administration at San Sebastian College, candidates must score in the Top 20% on a mental ability test. The test has a
[HINTs: 1.)Using the z-table you can verify that Top 20% implies z=0.84…2.)Find the x-value corresponding to z=0.84.]
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