Test Hypotheses Regarding the Difference of Two Independent Means
-And

question 22

Multiple Choice

Test Hypotheses Regarding the Difference of Two Independent Means
-and come from populations that are normal. The sample statistics are given below.
$$\begin{array} { l l } \mathrm { n } _ { 1 } = 25 & \mathrm { n } _ { 2 } = 30 \\\overline { \mathrm { x } } 1 = 19 & \overline { \mathrm { x } _ { 2 } } = 17 \\\mathrm {~s} _ { 1 } = 1.5 & \mathrm {~s} _ { 2 } = 1.9\end{array}$$

• A) \(4.361\)
• B) \(3.287\)
• C) \(2.892\)
• D) \(1.986\)

---

Definitions:

Experimental Methodology

A research method involving the manipulation of variables to test hypotheses and observe effects in controlled conditions.

Ethnocentrism

The act of judging another culture solely by the values and standards of one's own culture, often leading to biased perceptions.

Biased Sample

A sample that does not accurately represent the population from which it's drawn, often due to a selection process that favors certain characteristics.

Representative

Someone who stands in or acts on behalf of others, often in a political, sales, or customer service capacity.