SCENARIO 11-4
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.

-Referring to Scenario 11-4,the test is valid only if the population of crop yields has the same variance for the 3 varieties.

Question

SCENARIO 11-4
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.
 
-Referring to Scenario 11-4,the test is valid only if the population of crop yields has the same variance for the 3 varieties.

Quizplus · Accepted Answer

The test assumes the variances of the populations being compared are equal. In this scenario, the agronomist wants to compare the crop yield of 3 varieties of chickpea seeds, so the validity of the test depends on the assumption that the population variances are equal. Therefore, the statement is true.

SCENARIO 11-4 An Agronomist Wants to Compare the Crop Yield of 3