A Study of 20 Students Showed That the Correlation Between

Multiple Choice

A study of 20 students showed that the correlation between the time spent writing a test and the number of hours studied the night before the test was 0.35. Using a level of significance equal to 0.05, what does this imply?

A) The sample correlation coefficient could be 0 since the test statistic does not fall into the rejection region.
B) The null hypothesis that the population mean is equal to 0 should not be rejected, and we should conclude that the true correlation coefficient is 0.
C) There is not enough statistical evidence to conclude that the true correlation coefficient is different from 0.
D) The null hypothesis that the population variance is equal to 0 should be rejected, and we should conclude that the true correlation coefficient is 0.