Sample Size for Kendall Tau and Chi Square

Looking for help determining sample size for kendtall tau and chi square. Research has sample of 108, need to justify it. Familiar with formula in
Bonett, D. G., & Wright, T. A. (2000). Sample size requirements for estimating Pearson, Kendall and Spearman correlations. Psychometrika, 65(1), 23-28.

Would appreciate someone helping me run the formula, not sure the mean, variance and confidence interval since its ranked data.