The mean weight of newborn infants at a community hospital is said to be 6.6 pounds. A sample of seven infants is randomly selected and their weights at birth are recorded as 9.0, 7.3, 6.0, 8.8, 6.8, 8.4, and 6.6 pounds. What are the degrees of freedom associated with this claim?
A) 7
B) 8
C) 6
D) 6.6
E) 7.6

Question

Quizplus · Accepted Answer

The degrees of freedom associated with this claim for a sample of seven infants can be calculated as (n-1) where n is the sample size. Therefore, degrees of freedom = 7-1 = 6.

The Mean Weight of Newborn Infants at a Community Hospital