chi square critical value in r

# Define the significance level
alpha <- 0.05

# Define degrees of freedom
df <- 4

# Calculate the chi-square critical value
chi_critical <- qchisq(1 - alpha, df)
chi_critical

Explanation:

  1. Set the significance level (alpha) to 0.05, indicating a 5% significance level for the chi-square test.
  2. Define the degrees of freedom (df) as 4, which is a parameter needed for chi-square distribution calculations.
  3. Use the qchisq function in R to compute the chi-square critical value (chi_critical) corresponding to a given significance level (1 - alpha) and degrees of freedom (df).
  4. Output the calculated chi-square critical value.