If Two Random Samples of Sizes $n _ { 1 }$

question 21

Multiple Choice

If two random samples of sizes $n _ { 1 }$ and $n _ { 2 }$ are selected independently from two populations with means $\mu _ { 1 }$ and $\mu _ { 2 }$ , then the mean of the sampling distribution of the sample mean difference, $\bar { X } _ { 1 } - \bar { X } _ { 2 }$ , equals:

• A)\(\mu_{1}+\mu_{2}\)
• B) \(\mu_{1}-\mu_{2}\)
• C) \(\mu_{1}/\mu_{2}\)
• D) \(\mu_{1}\mu_{2}\) :

---

Definitions:

Prototype

A preliminary version, prototype, or iteration of a product developed to evaluate a concept or process, or to serve as an example for replication or educational purposes.

Capital

Financial assets or resources that businesses use to fund their operations and growth, including equity, debt, and other financial instruments.

Exit Strategies

Plans developed by a business or investor to sell, liquidate, or otherwise exit their position in an investment at an appropriate time.

Due Diligence

The investigation or exercise of care that a reasonable business or person is normally expected to take before entering into an agreement or transaction with another party.