To calculate the p-value from this W statistic obtained, the following steps can also be done on the TI-84 using some standard statistics function. Note that the approximation below are for the case 4 ≤ n ≤ 11.
The mean and standard deviation are derived using the below equations.
The W statistic is assigned from the correlation calculation results, and another variable V is calculated for the transformed W.
Finally, the standardized Z statistic and p-value is calculated using the mean, standard deviation, and the transformed W value.