An agricultural researcher wanted to know whether the mean number of plants for each plot type differed. A one-way ANOVA was performed to test H0: µSP = µSD = µNT. The null hypothesis was rejected with a P-value of 0.007. The researcher proceeded to conduct Tukey's test using StatCrunch to determine which means differed. The results are presented next. Which pairwise means differ? Which plot type would you recommend?

Transcribed Image Text:

Tukey 95% Simultaneous Confidence Intervals: Sludge Plot subtracted from Difference Upper P-value Lower Spring Disk 4.6666667 1.0171756 8.3161577 0.0122 No Till 0.16666667 -3.4828244 3.8161577 0.9923 Spring Disk subtracted from Difference Lower Upper P-value No Till -4.5 -8.149491 -0.85050897 0.0154