We are interested in determining if absences from a class affect your overall class grade. The folloWlng dala students is provided:
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.
![h. Find the correlation coefficient.
i. Find s2.
j. Find the test statistic for testing if b, is significant or not.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F857eeb4f-295d-402e-8497-c9abeb595b4f%2Fd3268768-0945-4640-86a0-cad89af64d50%2Fkroi22_processed.jpeg&w=3840&q=75)
![1. We are interested in determining if absences from a class affect your overall class grade. The following data from 10
students is provided:
Absences
Grade
89.2
1
83.7
83.5
81.1
4
78.2
73.9
6
64.3
7
71.8
8
55.9
65.2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F857eeb4f-295d-402e-8497-c9abeb595b4f%2Fd3268768-0945-4640-86a0-cad89af64d50%2Fjayiw4m_processed.jpeg&w=3840&q=75)
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