Find the Standardized Test Statistic to Test the Hypothesis That $\mu _ { 1 } = \mu _ { 2 }$

question 49

Multiple Choice

Find the standardized test statistic to test the hypothesis that $\mu _ { 1 } = \mu _ { 2 }$ . Two samples are randomly selected from each population. The sample statistics are given below. Use $\alpha = 0.05$ .
$$\begin{array} { l l } \mathrm { n } _ { 1 } = 50 & \mathrm { n } _ { 2 } = 60 \\\overline { \mathrm { x } } 1 = 21 & \overline { \mathrm { x } _ { 2 } } = 19 \\\mathrm {~s} 1 = 1.5 & \mathrm {~s} _ { 2 } = 1.9\end{array}$$

• A) 6.2
• B) 8.1
• C) 4.2
• D) 3.8

---

Definitions:

Remittances

Remittances are funds transferred by foreign workers to their home countries, serving as a vital source of income for families and economies in many developing countries.

Gains From Immigration

The economic or social benefits that accrue to a country as a result of immigration, including increased labor force and cultural diversity.

Labor Force

Comprises all the working-age people in an economy who are employed or are actively seeking employment.

Explicit Cost

Direct payment made to others in the process of running a business, such as wages, rent, and materials.