Assessing Normality of BMI data: Listed in a table are measurements of body mass index for women. a.Do these measure appear to come from a population that has a normal distribution? Why or why not? b.Can the mean of this sample be treated as a value from a population having a normal distribution? Why or Why not? BMI 15.9 18.7 24.2 28.7 28.2 28.9 28.9 28.9 29.0 29.1 29.3 31.4 59.0
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.
- Assessing Normality of BMI data: Listed in a table are measurements of body mass index for women.
a.Do these measure appear to come from a population that has a
b.Can the
|
BMI |
|
15.9 |
|
18.7 |
|
24.2 |
|
28.7 |
|
28.2 |
|
28.9 |
|
28.9 |
|
28.9 |
|
29.0 |
|
29.1 |
|
29.3 |
|
31.4 |
|
59.0 |
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