A researcher collects data between the age in years, (x), of a movie theater's popcorn popper and the cost of its monthly maintenance, (y). Find the regression equation. Round b to three decimal places. û = 12.827+ 6.588 vx Fill in the table to find the residuals. Round table entries to three decimal places. æ | y Y – ŷ 8 58 65.531 -7.531 v 9 98 72.119 25.881V 15 102 111.64 v -9.647 v 4 32 39.179 -7.179 7 60 58.943 1.057 X 3 32.591 -1.591 v 2 25 26.003V -1.003 v 31
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.
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