A Hypothesis Regarding the Weight of Newborn Infants at a Community

question 34

Multiple Choice

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. What is the sample variance?

• A)1.177
• B)6.6
• C)1.386
• D)7.6

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Definitions:

Re-arrest Rates

The frequency at which individuals who have been previously arrested are arrested again within a specific time frame.

Null Hypothesis

A statement in statistics that suggests there is no significant effect or difference between specified populations, any observed difference being due to sampling or experimental error.

Association

A statistical relationship between two variables, indicating how changes in one variable are related to changes in another.

Null Hypothesis

The hypothesis that there is no significant difference or effect, serving as the default assumption to be tested in statistical analysis.