The law firm ofDewey, Cheatem and Howebelieved there was a negative relationship between how much they charged their clients(dollars per hour) and the number of convictionstheir clientshad during a calendar year. The data below is the raw data from their study. Run a correlation and interpret the results. amount paid per hour # of convictons per calendar year 70 45 30 50 90 20 65 90 30 55 45 90 40 75 85 90 80 60 75 65 10 11 8 13 15 6 8 6 12 11 10 7 1 8 9 10 10 2 5 10
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.
The law firm ofDewey, Cheatem and Howebelieved there was a negative relationship between how much they charged their clients(dollars per hour) and the number of convictionstheir clientshad during a calendar year. The data below is the raw data from their study.
Run a
| amount paid per hour | # of convictons per calendar year |
|
70 45 30 50 90 20 65 90 30 55 45 90 40 75 85 90 80 60 75 65 |
10 11 8 13 15 6 8 6 12 11 10 7 1 8 9 10 10 2 5 10 |
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