You are here (click or tap to change)    Back to Chapter 14 Main Page

Example 190

 

Example 190 Test the claim at the 5% significance level that all four of the treatments produce the same median weight for poplar trees grown from seedlings. 
 

Effects of treatments on Poplar tree weights
Treatments
None    Fertilizer    Irrigation    Both
  0.15         1.34           0.23    2.03
  0.02         0.14           0.04    0.27
  0.16         0.02           0.34    0.92
  0.37         0.08           0.16    1.07
  0.22         0.08           0.05    2.38
 

 

  Back to Chapter 14