In: Statistics and Probability
Subject |
1 |
2 |
3 |
4 |
5 |
6 |
# of pregnancy losses in lifetime |
2 |
1 |
3 |
6 |
5 |
4 |
Average PAPP-A level during first trimester of pregnancy (in IU/liter) |
9.00 |
9.50 |
7.00 |
0.50 |
2.10 |
5.50 |
Given for a correlation test
r = -.464, p = .0091, a = .05.
the direction of the correlation is opposite to each other because r is negative, which means increase in Average PAPP-A level during first trimester of pregnancy decreases the # of pregnancy losses in lifetime.
here for the correlation test p-value is given as 0.0091 and the level of significance alpha = 0.05,
since p-value is less than alpha we reject null hypothesis and conclude that there is a significant correlation exists between the given variables.
r2 value = r2 = (-0.464)2 = 0.215
Interpretation of r2 : - The model explains 21.5% of the variability between the # of pregnancy losses in lifetime using the Average PAPP-A level during first trimester of pregnancy as an independent variable.