If the Limits of the Confidence Interval of the Difference

question 50

True/False

If the limits of the confidence interval of the difference between the means of two normally distributed populations were from -2.6 and 1.4 at the 95% confidence level,then we can conclude that we are 95% certain that there is a significant difference between the two population means.

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Definitions:

Confidence Interval

A scope of values, derived through sample statistical methods, seen as likely to include the value of an unascertained population parameter.

Population Mean

The average of a set of numerical values obtained from every member of a population.

Robust Estimator

A statistical method or measure that is not unduly affected by outliers or deviations from assumptions in the underlying data distribution.

Nonnormality

The deviation from the normal distribution in a set of data, where the data does not follow a bell-curve shape.