MonkWild.txt


1. Wild Monkeys (The control group)

N = 286 eyes (of wild monkeys) had their refracitve state
measured. The refracitve state (average) was +0.68. The standard
deviation was 0.73

2. Inside, or caged Monkeys (The "test" group)

N = 100 eyes (of inside) monkeys had their refractive state
measured. The refractive state (average) was -0.36. The Standard
deviation was 1.78.

In statistical testing you look for confidence levels (that
the natural eye is dynamic.

Levels greater-than 3.9 spell virtual certainty -- that the
fundamental eye is dynamic with respect to a change in its average
visual environment.

Here are the calculations.


The large-scale statistics are:


z = [ Xc - Xt ] / Sqrt [ Sigma(c) ^2 / Nc + Sigma(t) ^2 / Nt ]

z = [0.68 - ( -0.36)] / Sqrt [ (0.73 ^2 / 268) + (1.73 ^2 / 100)]

z = 5.82


The one-tailed "Z" value for 99.8 percent confidence
is 2.88.

This calculated value profoundly exceeds this level of confidence.
Anything above 3.9 is considered a virtual certainty.


Otis