People substitute various combinations of cinnamon, nutmeg, allspice, coriander, and ginger, but you won't get something that tastes like cardamom. Not that it won't be good, it just won't be cardamom. Scout around for ethnic markets; it will often be cheaper there. Middle Eastern or Indian are what I'd try first.
The t-test and the one-way analysis of variance (ANOVA) are the two most common tests used for this purpose. The t-test is a statistical hypothesis test where the test statistic follows a Studentâs t distribution if the null hypothesis is supported. This test is applied when the test statistic follows a normal distribution and the value of a scaling term in the test statistic is known.
The null hypothesis for ANOVA is that the mean (average value of the dependent variable) is the same for all groups. The alternative or research hypothesis is that the average is not the same for all groups. The ANOVA test procedure produces an F-statistic, which is used to calculate the p-value.