Item | 95% Confidenceinterval | Variation of estimated percentages |
Cement | (27269.57, 28078.16) | (6.32, 9.48) |
Hollow brick | (25804.41, 26030.55) | (0.61, 1.49) |
Terracotta block | (27280.13, 27593.58) | (6.37, 7.59) |
Hollow brick “Hiper” | (26634.06, 26851.86) | (3.85, 4.70) |
Brick (special) | (25715.37, 25821.06) | (0.26, 0.68) |