Estimates of coefficients for prediction model given by Eq (1).

First column: coefficient name. Second column: estimated coefficient values. Columns 3-6: standard error, lower 95% confidence interval, upper 95% confidence interval, z-value, and p-value. Coefficient θj (rows 1-4) and β regression coefficient (row 5) were estimated by fitting the model to use levels expressed in hundreds of visitors. The statistical significance tests (z-values and the associated p-values) indicate high significance (p < 0.001).