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A manufacturer of cell phones is interested in evaluating two alternative existing layout and flow path designs. Design 1 is the current one in use and Design 2 is a new proposed plan. Both designs were implemented for eight consecutive working days and the output of each design was recorded.
-What are the degrees of freedom for this paired design analysis?
A) 8 (since there are eight days).
B) 16 (since there are 16 observations in all).
C) 15
D) 7

Question

Use the following information for questions:
 A manufacturer of cell phones is interested in evaluating two alternative existing layout and flow path designs. Design 1 is the current one in use and Design 2 is a new proposed plan. Both designs were implemented for eight consecutive working days and the output of each design was recorded.
-What are the degrees of freedom for this paired design analysis?
A) 8 (since there are eight days).
B) 16 (since there are 16 observations in all).
C) 15
D) 7

Quizplus · Accepted Answer

The degrees of freedom for a paired design analysis is calculated as n - 1, where n is the number of pairs. Here, n = 8 (eight days of observations for each design), so the degrees of freedom = 8 - 1 = 7.

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