I have four restaurants with a nearest neighbor analysis defining the restaurant pattern as clustered, random, or dispersed

I have four restaurants with a nearest neighbor analysis defining the restaurant pattern as clustered, random, or dispersed.

Italian: Observed mean distance/expected mean distance = 0.67 Less than 1% likelihood it being clustered is random
Z score = 6.3 standard deviations
Significance Levels: 0.01; 0.05; 0.10; Random; 0.10; 0.05; 0.01
Critical Values: -2.56; -1.96; -1.65; 1.65; 1.96; 2.58

Japanese: Observed Mean distance/expected mean distance = 0.25 Less than 1% it being clustered is random
Z score = -9.4 SD
Sig and critical values are the same

Korean: OMD/EMD = 0.95 Neither clustered nor random; it is right in the center of both
Z score = -0.3 SD
Sig And Critical are the same

French: Less than 1% likelihood that its being dispersed as clustered is random
OMD/EMD = 0.42
A score = -4.9 SD
Sig and Critical are the same.