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In addition to the χ2 test, standard errors (and hence t-values [although these values are referred to as t-scores, they are more properly described as asymptotic z-scores] and probability values) can be calculated, and these can be used to test the statistical significance of the difference between that parameter value, and any hypothesised population value (most commonly zero).
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There are commonly one or two seeds per locule.
The incubation period of SARS seems to range from two to seven days, most commonly four to five days.
Others are black with four, or less commonly two, black spots and prominent white "false eye" markings at the front.
Races were over two, three or more commonly four miles, and many events involved heats.
The rabāb has a membrane belly and, commonly, two or three strings.
There are commonly nine directors selected for each year group and thus usually nine films made in each unit.
Dwellings are commonly one- or two-story buildings with walls of stone or brick and flat clay roofs.
Where further recursion is possible, commonly three steps are sufficient.
Commonly, two forms of constitution are in play: one negative, the other positive.
There are commonly two types of uncertainties: aleatory and epistemic [29, 30].
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com