A 95% Confidence Interval for the Difference Between Two Population

question 21

Multiple Choice

A 95% confidence interval for the difference between two population means is found to be (−0.08, 0.15) . Which of the following statements is true?

• A)We can be 95% confident that the true difference between the population means falls between −0.08 and 0.15.
• B)The probability is 0.95 that a significant difference between the population means lies between −0.08 and 0.15.
• C)The probability is 0.05 that the true difference between the population means is between −0.08 and 0.15
• D)The two populations cannot have the same means.

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Definitions:

Corrective Action

Steps taken to rectify or eliminate the causes of a detected non-conformity or discrepancy, aiming at preventing recurrence.

Controlling

In management, the process of monitoring performance and making adjustments to achieve desired outcomes.

Desired Results

The specific outcomes or objectives that an individual, group, or organization aims to achieve, serving as targets for planning and performance evaluation.

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