Shown below are partial results from using the Bonferroni test with the sample data from Exercise 13. Assume that a 0.05 significance level is being used.

a. What do the displayed results tell us?

b. Use the Bonferroni test procedure to test for a significant difference between the mean amount of the irrigation treatment group and the group treated with both fertilizer and irrigation. Identify the test statistic and either the P-value or critical values. What do the results indicate?

Transcribed Image Text:

SPSS 95% contoence interval Treatment Tre atment Mean Difterence Std Emor Sag Lower Bound Upper Bound 100 2.00 3 DO 4.00 02200 26955 1000 23600 26955 1000 039 8329 5749 1.6549 7889 0489 0331 -8440026955 0