SCENARIO 10-4
An agronomist wants to compare the crop yield of 3 varieties of chickpea seeds.She plants 15 fields,
5 with each variety.She then measures the crop yield in bushels per acre.Treating this as a completely randomized design, the results are presented in the table that follows. $\begin{array}{rrrr}
\text { Trial}&\text { Smith}&\text { Walsh}&\text { Trevor }\
1 & 11.1 & 19.0 & 14.6 \
2 & 13.5 & 18.0 & 15.7 \
3 & 15.3 & 19.8 & 16.8 \
4 & 14.6 & 19.6 & 16.7 \
5 & 9.8 & 16.6 & 15.2
\end{array}$
-Referring to SCENARIO 10-4, based on the Tukey-Kramer procedure with an overall level of significance of 0.01, the agronomist would decide that there is a significant difference between the crop yield of Smith and Walsh seeds.

Question

SCENARIO 10-4
An agronomist wants to compare the crop yield of 3 varieties of chickpea seeds.She plants 15 fields,
5 with each variety.She then measures the crop yield in bushels per acre.Treating this as a completely randomized design, the results are presented in the table that follows. $\begin{array}{rrrr}
\text { Trial}&\text {  Smith}&\text {  Walsh}&\text {  Trevor }\
1 & 11.1 & 19.0 & 14.6 \
2 & 13.5 & 18.0 & 15.7 \
3 & 15.3 & 19.8 & 16.8 \
4 & 14.6 & 19.6 & 16.7 \
5 & 9.8 & 16.6 & 15.2
\end{array}$
-Referring to SCENARIO 10-4, based on the Tukey-Kramer procedure with an overall level of significance of 0.01, the agronomist would decide that there is a significant difference between the crop yield of Smith and Walsh seeds.

Quizplus · Accepted Answer

The Tukey-Kramer procedure is used to compare all possible pairs of means when the sample sizes are equal, as in this scenario. Given the apparent differences in the means of the crop yields for Smith and Walsh seeds, with Walsh seeds consistently yielding more per the data provided, it is reasonable to conclude that the procedure would identify a significant difference between these two varieties at the 0.01 level of significance.

SCENARIO 10-4 an Agronomist Wants to Compare the Crop Yield

SCENARIO 10-4
an Agronomist Wants to Compare the Crop Yield