Estimate the median difference in textbook prices
Suppose instead of the mean, we want to estimate the median difference in prices of the same textbook at the UCLA bookstore and on Amazon. You can't do this using a t-test, as the Central Limit Theorem only talks about means, not medians. You'll use an infer pipeline to estimate the median.
Questo esercizio fa parte del corso
Inference for Numerical Data in R
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
# Calculate 15000 bootstrap medians of diff
textdiff_med_ci <- ___ %>%
___ %>%
___ %>%
___