SCENARIO 10-2 A Researcher Randomly Sampled 30 Graduates of an MBA Program

question 147

Multiple Choice

SCENARIO 10-2
A researcher randomly sampled 30 graduates of an MBA program and recorded data concerning their starting salaries.Of primary interest to the researcher was the effect of gender on starting salaries.
The result of the pooled-variance t-test of the mean salaries of the females (Population 1) and males (Population 2) in the sample is given below.

-Referring to Scenario 10-2,the researcher was attempting to show statistically that the female MBA graduates have a significantly lower mean starting salary than the male MBA graduates.What assumptions were necessary to conduct this hypothesis test?

• A)Both populations of salaries (male and female)must have approximate normal distributions.
• B)The population variances are approximately equal.
• C)The samples were randomly and independently selected.
• D)All of the above assumptions were necessary.

---

Definitions:

Positive Correlation

A relationship between two variables where an increase in one variable is associated with an increase in the other, indicating a direct relationship.

Interpersonal Intelligence

Interpersonal intelligence is the ability to understand and interact effectively with others, involving skills such as empathy, communication, and understanding social cues.

Excellent Salesperson

An individual who excels in selling products or services, usually demonstrating strong interpersonal skills and sales strategies.

Nature vs. Nurture

A debate concerning the relative importance of an individual's innate qualities versus personal experiences in determining or causing differences in physical and behavioral traits.