Use one of the sources given in the text (R or http://vassarstats.net/rho.html) to calculate a confidence interval on the correlation between Expenditures for education and SATcombined from Figure 9.10. Interpret this interval.

Transcribed Image Text:

Figure 9.10 Sampling distribution of the correlation when sampling from a popula- tion when the true correlation is 0 Distribution of Correlation Coefficients Frequency 600 500 400 300 200 100 -0.4 -0.2 0.0 Correlation coefficient N = 50 0.2 0.4