A firm is concerned with variability in hourly output at several factories and shifts.Here are the results of an ANOVA using output per hour as the dependent variable (some information is missing). The number of observations in each treatment cell (row-column intersection)is:
A) 1.
B) 2.
C) 3.
D) impossible to determine.

Question

A firm is concerned with variability in hourly output at several factories and shifts.Here are the results of an ANOVA using output per hour as the dependent variable (some information is missing).  The number of observations in each treatment cell (row-column intersection)is:
A) 1. 
B) 2. 
C) 3. 
D) impossible to determine.

Quizplus · Accepted Answer

Based on the information given, the ANOVA table shows the number of observations (df) for the error term as 45, and the total number of observations as 72. Therefore, the number of observations in each treatment cell can be calculated by subtracting the number of observations in the error term from the total number of observations and dividing by the number of treatment cells. Thus, (72-45)/6 = 4.5, which is rounded to the nearest whole number of 3. Therefore, the answer is C) 3.

A Firm Is Concerned with Variability in Hourly Output at Several