A Researcher Measured the Body Mass Index (BMI) of a Large

question 15

Multiple Choice

A researcher measured the body mass index (BMI) of a large sample of adolescents in an urban school system .(BMI is the ratio of a person's weight in kilos divided by the square of their height in meters.) Which would you use to show the distribution of BMI?

• A)Histogram
• B)Bar chart
• C)Pie chart
• D)Frequency distribution

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Definitions:

Type I Error

The mistaken disapproval of a valid null hypothesis, commonly referred to as a "false positive."

Type II Error

The error that occurs when a false null hypothesis is not rejected, meaning a real effect or difference was missed.

Type I Error

The mistake of rejecting a true null hypothesis, or in other words, concluding that a difference or effect exists when it actually does not.

Decision Rule

A pre-determined guideline or criterion used to choose between multiple alternatives in the face of uncertainty, often based on statistical analysis.