According to the Chebyshev Rule, at Least What Percentage of the Observations

question 2

Multiple Choice

According to the Chebyshev rule, at least what percentage of the observations in any data set are contained within a distance of 3 standard deviations around the mean?

• A) 67%
• B) 75%
• C) 88.89%
• D) 99.7%

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Definitions:

Null Hypothesis

The hypothesis in statistical testing that assumes no significant difference or effect in the population; it is the hypothesis that researchers aim to test against.

One-sample T Test

A statistical test used to determine whether the mean of a single sample differs significantly from a known or hypothesized population mean.

Standard Error

A statistical measure that estimates the accuracy of a sample mean by quantifying the dispersion of sample means around the population mean.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, showing how much the values differ from the mean.