t-statistic
Using the permuted datasets (recall, the randomization forces the null hypothesis to be true), investigate the distribution of the standardized slope statistics (the slope, which has been divided by the standard error). Note that the distribution of the standardized slope is well described by a t-distribution.
แบบฝึกหัดนี้เป็นส่วนหนึ่งของหลักสูตร
Inference for Linear Regression in R
แบบฝึกหัดเชิงโต้ตอบแบบลงมือทำ
ลองทำแบบฝึกหัดนี้โดยเติมโค้ดตัวอย่างนี้ให้สมบูรณ์
# Look at the data
twins_perm
# Filter for Biological_perm
biological_perm <- twins_perm %>%
___
# Calculate degrees of freedom of twins
degrees_of_freedom <- ___