A researcher theorizes the correlation between age and driving violations is zero in the population of adults. Another researcher decides to test this theory. She believes there is a correlation, but she is not sure of the direction. She collects data from a sample of 62 individuals and finds a correlation of .20. Use this information to answer questions 6 - 9. Using the information above, what are the df for determining the critical value of t. 62 28 60 19