In: Statistics and Probability
A random sample of 9 biology students produced the following data,
first test score, x | 2nd test score, y |
84 | 31 |
52 | 69 |
40 | 32 |
23 | 32 |
67 | 40 |
37 | 88 |
15 | 96 |
82 | 88 |
30 | 53 |
where x measures the 1st test score and y measures the second test score. What is the estimate of the y = a x + b regression intercept coefficient?
Regression analysis :Is the relationship between dependent variable and independent variable or predictor variable and outcome variable these are called regression coefficient
Regression Analysis Y=a+bX
Y=67.1429-0.1751X
a=67.1429 = intercept
b=-0.1751 = slope
Excel output :Data analysis ...Regression ...