The Mean Weight of Newborn Infants at a Community Hospital

Multiple Choice

The mean weight of newborn infants at a community hospital is 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. Does this sample support the original claim? What is the alternate hypothesis?

A) μ = 6.6
B) μ ≠ 6.6
C) μ ≥ 6.6
D) μ > 7.6
E) μ ≠ 7.6