शुरू करेंमुफ़्त में शुरू करें

Observed statistic and p-value

You now have a null distribution. In order to get a p-value and weigh up the evidence against the null hypothesis, you need to calculate the difference in proportions that is observed in the late_shipments sample.

late_shipments is available; dplyr, infer, and ggplot2 are loaded.

यह अभ्यास पाठ्यक्रम का हिस्सा है

Hypothesis Testing in R

पाठ्यक्रम देखें

इंटरैक्टिव व्यावहारिक अभ्यास

इस अभ्यास को इस नमूना कोड को पूरा करके आज़माएँ।

null_distn <- late_shipments %>% 
  specify(
    late ~ freight_cost_group, 
    success = "Yes"
  ) %>% 
  hypothesize(null = "independence") %>% 
  generate(reps = 2000, type = "permute") %>% 
  calculate(
    stat = "diff in props", 
    order = c("expensive", "reasonable")
  )

# Copy, paste, and modify the pipeline to get the observed statistic
obs_stat <- ___









# See the result
obs_stat
कोड संपादित करें और चलाएँ