Giving a test to a group of students the grades and gender are summarized below A. B. C. Total Male. 17. 14. 6. 37 Female 15. 7. 5. 27 Total. 32. 21. 11. 64 let p represent the proportion of all male students who would receive a grade of B on this test. Use a 85% confidence interval to estimate p to three 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.
Giving a test to a group of students the grades and gender are summarized below
A. B. C. Total
Male. 17. 14. 6. 37
Female 15. 7. 5. 27
Total. 32. 21. 11. 64
let p represent the proportion of all male students who would receive a grade of B on this test. Use a 85% confidence
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