Below we have the mean fitness score and sample size for three samples of participants: Sample M n Lean 46 12 Overweight 58 14 Obese 73 30 What is the overall mean fitness score?
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.
Below we have the mean fitness score and
|
Sample |
M |
n |
|
Lean |
46 |
12 |
|
Overweight |
58 |
14 |
|
Obese |
73 |
30 |
What is the overall mean fitness score?
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