```
julia> using HypothesisTests, Random;
julia> Random.seed!(0); x= randn(100); y= randn(100);
julia> OneSampleTTest(x,y)
```

the point estimate is slightly unstable. it may output one of the two:

```
point estimate: 0.121977870355099
point estimate: 0.12197787035509895
```

is this indeterminacy a buglet? can HT be forced to lower and perfect precision?

/iaw