Among a Sample of 100 Students Selected at Random from One

question 5

Multiple Choice

Among a sample of 100 students selected at random from one college,the mean number of siblings is 1.4 with a standard deviation of 1.3.Find a 95% confidence interval for the mean number of siblings for all students at this college.

• A)(1.08,1.73)
• B)(1.36,1.44)
• C)(61.8,66.2)
• D)(0.95,1.45)
• E)(1.24,1.44)

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Definitions:

Scatterplot

A graphical representation using dots to show the relationship between two sets of data or variables.

Negatively Correlated

An association between two variables characterized by the increase of one variable leading to the decrease of the other, and reverse scenarios.

Variables

Elements, features, or factors that can change and have different values among subjects in a study or experiment.

Illusion

A distortion of the senses, revealing how the brain normally organizes and interprets sensory stimulation.