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# t-test or Mann-Whitney test?

Sat 24 May, 2014 05:33 am
I want to compare time spent in shopping between two group people. One group has 1426 cases, whereas the other group only has 96 cases. Which statistical method should I use, t-test or Mann-Whitney test?
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fresco

1
Sat 24 May, 2014 06:36 am
@black3173,
You can use a t-test for time data with the assumption of normal distribution.
black3173

1
Sun 25 May, 2014 07:17 am
@fresco,
Thanks for the reply. But with such a big difference in the sample size between these two groups (1426 vs. 96), is it better to use a Mann-Whitney test?
fresco

1
Sun 25 May, 2014 08:01 am
@black3173,
According to the literature, sample size is not relevant.
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