Salary of Business Graduates Narrative
An economist wants to test whether the mean starting salary (in $1000s) of business graduates is the same for three different majors and three types of class standing (top third, middle third, lowest third). No interaction is assumed. Appropriate sampling reveals the data shown below.
Starting Salaries (thousands of dollars per year)
-Provide an example for a randomized block design with three treatments (k = 3) and four blocks (b = 4), in which SSB = 0 and SST and SSE are not equal to 0.

Question

Salary of Business Graduates Narrative
An economist wants to test whether the mean starting salary (in $1000s) of business graduates is the same for three different majors and three types of class standing (top third, middle third, lowest third). No interaction is assumed. Appropriate sampling reveals the data shown below.
Starting Salaries (thousands of dollars per year) 
-Provide an example for a randomized block design with three treatments (k = 3) and four blocks (b = 4), in which SSB = 0 and SST and SSE are not equal to 0.

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The Answer of Salary of Business Graduates Narrative
An economist wants to test whether the mean starting salary (in $1000s) of business graduates is the same for three different majors and three types of class standing (top third, middle third, lowest third). No interaction is assumed. Appropriate sampling reveals the data shown below.
Starting Salaries (thousands of dollars per year) 
-Provide an example for a randomized block design with three treatments (k = 3) and four blocks (b = 4), in which SSB = 0 and SST and SSE are not equal to 0.