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

Question

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

Quizplus · Accepted Answer

The alternate hypothesis is that the mean weight of newborn infants is not equal to 6.6 pounds, which is represented by μ ≠ 6.6.

The Mean Weight of Newborn Infants at a Community Hospital