The scatterplot shows the median starting salaries and Ehe median mid-career salaries for graduates at a selection of colleges. Complete parts (a) through (e) pelow 175- 150어 125- Mid-Career = - 13,506 + 2.061 Start Med 100- 75- 50- 25+ 30 Start Median Salary (thousands of $) 40 50 60 70 80 p. Why do you suppose median salary at a school is used instead of the mean? VA. Salary distributions are usually skewed, making the median a more meaningful measur O B. Salary distributions are usually bell-shaped, making the median a more meaningful mea O C. It is easier to calculate the median for a salary distribution instead of the mean. O D. Salary distributions are usually bimodal, making the median a more meaningful measur E. Using the graph, estimate the median mid-career salary for a median starting salary of $50,0 The median mid-career salary for a median starting salary of $50,000 is about $ Mid- Career Salary (thou of $)
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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