Suppose that x follows a chi-square distribution with 21 degrees of freedom. Use the ALEKS calculator to answer the following. (a) Compute P(15k) = ( = 0.025. Round your answer to at least two decimal places.
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.
![Suppose that x follows a chi-square distribution with 21 degrees of freedom.
Use the ALEKS calculator to answer the following.
2.
(a) Compute P
(15<xs33). Round your answer to at least three decimal places.
P(15<x<33
P(15sx's33)= ]
(b)
Find k such that P(x>k) = 0.025. Round your answer to at least two decimal places.
k=DD](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbadd8bc0-027a-4e9c-a52d-9ea9afee0954%2F06392a28-d645-4865-8632-4591747e36af%2Fyz55xkd_processed.jpeg&w=3840&q=75)
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