12-07-2018, 12:24 AM
I noticed a minor labelling bug in the Inference app.
In that app's Import Sample Statistics screen, the labels for the previews of standard deviation s and sample size n values are reversed.
Fortunately the values are imported correctly: it's just the labels on the import screen's value previews that are reversed.
This only happens for the two-sample tests; e.g. T-Test: 1 μ doesn't show the problem.
[Prime G2 firmware 14181]
to reproduce:
In that app's Import Sample Statistics screen, the labels for the previews of standard deviation s and sample size n values are reversed.
Fortunately the values are imported correctly: it's just the labels on the import screen's value previews that are reversed.
This only happens for the two-sample tests; e.g. T-Test: 1 μ doesn't show the problem.
[Prime G2 firmware 14181]
to reproduce:
- Statistics 1Var app, Numeric view, enter two columns of data under D1/D2, say five rows each, with some numbers
- Symbolic view, enable both H1 and H2, for columns D1 & D2 respectively
- Optionally, Numeric view, touch Stats, which should show two columns of calculated statistics. Touch OK
- Inference app, Symbolic view, method: Hypothesis test, type: T-test μ₁-μ₂, Alt: μ₁≠μ₂
- Numeric view, touch Import, select Statistics 1Var for both, D1 at the top, then D2 below
- Although the mean x̅ values are shown correctly, the standard deviation s and the sample size n values are reversed. Touch OK
- The values have nevertheless been imported correctly