File Home Insert Page Layout Formulas Data Review View Help J2 fe A B D H. K M 3 4 Consider the following data points: 5 X2 X4 6 78.5 26 6 60 7 74.3 29 15 52 8 104.3 11 56 8. 20 9 87.6 11 31 8. 47 10 95.9 7 52 33 11 109.2 11 55 22 12 102.7 71 17 6. 13 72.5 1 31 22 44 14 93.1 54 18 22 15 115.9 21 47 4 26 16 83.5 40 23 34 17 113.3 11 66 9 12 18 109.4 10 68 8 12 19 Using a Stepwise, backward elimiation aproach develop the best linear regression model (equation) possible and show: 20 a. The regression equation b. The p-value for the F statistic for the entire regression. c. List the significant independent variables and the p-value for each 21 22 23 Show all work and label each step. L.
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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