A company learns that the longer an employee works for them, the more beneficial that employee is to the company. They decide to study a stem-and-leaf plot showing the length of employment, in months. The company wants to provide an incentive to encourage more employees to stay. Based on this plot, to which group of employees should the company offer the incentive? Choose the best answer. Stem Leaf 011224578 1 014 5567789 2 23558 3 059 4 8 O employees who have been employed for 0-2 months O employees who have been employed for 4-10 months O employees who have been employed for 14-19 months O employees who have been employed for 30-39 months
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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