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.
यह अभ्यास पाठ्यक्रम का हिस्सा है
Hypothesis Testing in R
इंटरैक्टिव व्यावहारिक अभ्यास
इस अभ्यास को इस नमूना कोड को पूरा करके आज़माएँ।
# Perform pairwise t-tests on pack price, grouped by shipment mode, no p-value adjustment
test_results <- ___
# See the results
test_results