T-TESTS:

Student's two samples t-tests assuming equal variances; quickly comparing KPI or parameters'values for two different trial conditions (e.g., Old Reagent vs. New Reagent). They are completed without the pain of manually copying and pasting data for each conditions. It also calculates the statistical significance of the differences (for 1 and 2 tails), the confidence levels and the confidence intervals in the differences for the provided alpha. They are all summarised in a table.

The cleaned input data Excel file should have the parameters or variables'names in the top cell of each column at the top row (e.g., date/timestamp, throughput, feed grade, recovery, etc..).
The parameters' values are in the rows below the parameters'names. See example in table below.

Date	Mill availability	Throughput	Feed grade	Concentrate grade	Tailing grade
1/01/2022	92%	1200	1.21	25.4	0.150
2/01/2022	95%	1220	1.18	26.1	0.145
...	...	...	...	...	...
31/07/2022	97%	1180	1.19	14.8	0.147

To use:
✅Choose the cleaned Excel (.xlsx) data file and click on "Upload to a table".
✅Select the parameters to complete t-tests and the two different conditions to compare (e.g., t-test for "recovery" between "shift" of type "day" and "night".
✅Provide the alpha value (e.g., 0.10 for 90 percent confidence interval calculation).
✅Click on "Calculate t-Tests".
Watch a Youtube video example here.

large files may take time to upload, please wait.

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Two sample t-Tests
t-Test for: Select between: Select of type: Select and: Select Select between: Select of type: Select and: Select Select between: Select of type: Select and: Select Select between: Select of type: Select and: Select Select between: Select of type: Select and: Select Select between: Select of type: Select and: Select Select between: Select of type: Select and: Select Select between: Select of type: Select and: Select Select between: Select of type: Select and: Select Select between: Select of type: Select and: Select
Assuming equal variance
Alpha: (hypothethised mean difference = 0)

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