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Artifacts
by Scott G. Ortman
Table 35. Cross-tabulation of Condition vs. Number of Grinding Surfaces for Two-Hand Manos, Castle Rock Pueblo
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Condition
Number of Grinding Surfaces
Total
One Surface
Two Adjacent Surfaces
Two Opposite Surfaces
Three Surfaces
Four Surfaces
Complete
count
3
1
6
2
12
condition
25.0
8.3
50.0
16.7
100.0
surfaces
6.3
13.3
40.0
9.8
Broken
count
13
8
9
3
6
39
condition
33.3
20.5
23.1
7.7
15.4
100.0
surfaces
81.3
88.9
60.0
60.0
100.0
76.5
TOTAL
count
16
9
15
5
6
51
condition
31.4
17.6
29.4
9.8
11.8
100.0
surfaces
100.0
100.0
100.0
100.0
100.0
100.0
NOTES: Condition = percent within condition; surfaces = percent within number of surfaces.
Chi-Square Test Results
Value
df
2-Tailed Significance
5.836a
4
0.212
7.009
4
0.135
No. of valid cases
51
a Seven cells (70.0%) have an expected count of less than five. The minimum expected count is 1.18. df = degrees of freedom.
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