A hypothesis regarding the weight of newborn infants at a community hospital is that the mean 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)H₀: µ = 6.6 B)H₀: µ ≥ 6.6 C)H₀: µ 7.6 D)H₀: µ ≤ 7.6

Question

A hypothesis regarding the weight of newborn infants at a community hospital is that the mean 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)H₀: µ = 6.6 B)H₀: µ ≥ 6.6 C)H₀: µ > 7.6 D)H₀: µ ≤ 7.6

Quizplus · Accepted Answer

The null hypothesis is a statement that there is no effect or no difference, and it is usually formulated as an equality. In this case, the hypothesis that the mean weight of newborn infants is 6.6 pounds translates directly into the null hypothesis: µ = 6.6.

A Hypothesis Regarding the Weight of Newborn Infants at a Community