Question

To study the correlation between the heights of fathers and sons, a sample of 900 is
taken and a coefficient of correlation of 0.67 is observed, can it be said at 5% level of
significance that the correlation in the universe is 0.8?

Answer 1

Answer:

The present review introduces methods of analyzing the relationship between two quantitative variables. The calculation and interpretation of the sample product moment correlation coefficient and the linear regression equation are discussed and illustrated. Common misuses of the techniques are considered. Tests and confidence intervals for the population parameters are described, and failures of the underlying assumptions are highlighted.

Keywords: coefficient of determination, correlation coefficient, least squares regression line