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.The null hypothesis is
A)µ = 6.6
B)µ ¹ 6.6
C)µ $\ge$ 6.6
D)µ 7.6
E)µ ¹ 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.The null hypothesis is
A)µ = 6.6
B)µ ¹ 6.6
C)µ $\ge$ 6.6
D)µ > 7.6
E)µ ¹ 7.6

Quizplus · Accepted Answer

The null hypothesis represents the statement that there is no effect or no difference, and it is usually a statement of equality. Here, the null hypothesis is that the mean weight of newborn infants is equal to 6.6 pounds.

The Mean Weight of Newborn Infants at a Community Hospital ≥\ge≥

The Mean Weight of Newborn Infants at a Community Hospital $\ge$