Two Researchers Analyze the Same Data Set

question 11

Multiple Choice

Two researchers analyze the same data set.Researcher A uses a two-independent-sample t test and decides to retain the null hypothesis.Researcher B uses a related-samples t test and decides to reject the null hypothesis.Which of the following is a likely explanation for the disparity in the decisions made?

• A) The two-independent-sample t test had greater power to detect the effect.
• B) The two-independent-sample t test was associated with fewer degrees of freedom.
• C) The related-samples t test had greater power to detect the effect.
• D) The related-samples t test was associated with more degrees of freedom.

---

Definitions:

Work Centres

Locations within a manufacturing facility where specific production activities or operations are carried out, often involving particular machines or groups of workers.

Alpha

In finance, the excess return of an investment relative to the return of a benchmark index. In statistics, the probability of a Type I error in hypothesis testing.

Beta

In finance, a measure of the volatility, or systematic risk, of a security or a portfolio in comparison to the market as a whole.

Earliest Due Date

A scheduling strategy that prioritizes tasks or orders based on their due dates, starting with the earliest.