XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 283
Table 6. Shapiro-Wilk normality test
Variable Obs W V z Probz
return_on_asset 97 0.91 7.41 4.44 0.00
tobin_q_ratio 97 0.95 3.85 2.99 0.00
-20
0
20
40
-20 -10 0 10 20 30
Inverse normal
Figure 3. Norma l (P-P) plot regression standardized residual ROA
0
.5
1
1.5
2
2.5
0 .5 1 1.5 2
Inverse normal
Figure 4. Normal (P-P) plot regression standardized residual TQ
return_on_asset
tobin_q_ratio
Table 6. Shapiro-Wilk normality test
Variable Obs W V z Probz
return_on_asset 97 0.91 7.41 4.44 0.00
tobin_q_ratio 97 0.95 3.85 2.99 0.00
-20
0
20
40
-20 -10 0 10 20 30
Inverse normal
Figure 3. Norma l (P-P) plot regression standardized residual ROA
0
.5
1
1.5
2
2.5
0 .5 1 1.5 2
Inverse normal
Figure 4. Normal (P-P) plot regression standardized residual TQ
return_on_asset
tobin_q_ratio