In a recent study of the effectiveness of popular diet plans, subjects were given a numerical score of how well they adhered to the diet, as well as having their weight loss measured.
For the 143 subjects who completed the study, the correlation coefficient between adherence score and weight loss turned out to equal .233.
Conduct a significance test of whether this sample correlation coefficient is significantly greater than 0. Report the null and alternative hypotheses, test statistic, and p-value.
Also write a sentence summarizing your conclusion.