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Pairwise t-tests

The ANOVA test didn't tell us which categories of shipment mode had significant differences in pack prices. To pinpoint which categories had differences, we could instead use pairwise t-tests.

late_shipments is available.

This exercise is part of the course

Hypothesis Testing in R

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Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Perform pairwise t-tests on pack price, grouped by shipment mode, no p-value adjustment
test_results <- ___






# See the results
test_results
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