The datset StudentSurvey has information from males and females on the number of hours spent exercising in a typical week. Computer output of descriptive statistics for the number of hours spent exercising, broken down by gender, is given: Descriptive Statistics: Exercise Variable Gender N Mean StDev Minimum Q1 Median Q3 Maximum Exercise F 168 8.110 5.199 0.000 4.000 7.000 12.000 27.00
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.
Chapter 6, Section 4-CI, Exercise 205
The datset StudentSurvey has information from males and females on the number of hours spent exercising in a typical week. Computer output of
| Descriptive Statistics: Exercise | |||||||||
| Variable | Gender | N | Mean | StDev | Minimum | Q1 | Q3 | Maximum | |
| Exercise | F | 168 | 8.110 | 5.199 | 0.000 | 4.000 | 7.000 | 12.000 | 27.000 |
| M | 193 | 9.876 | 6.069 | 0.000 | 5.000 | 10.000 | 14.000 | 40.000 Click here for the dataset associated with this question. |
|
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
