A Researcher Was Interested in Comparing the Heights of Women

question 21

Multiple Choice

A researcher was interested in comparing the heights of women in two different countries.Independent random samples of 9 women from country A and 9 women from country B yielded the following heights (in centimetres) .
Determine a 90% confidence interval for the difference,
-
,between the mean height of women in Country A and the mean height of women in Country B.

• A)(0.4,10.7)
• B)(1.4,9.2)
• C)(0.8,14.2)
• D)(161.4,164.3)
• E)(0.7,4.2)

---

Definitions:

Stress Increases

A situation or condition that leads to heightened levels of stress, potentially affecting health or performance.

Increase

A rise in quantity, size, amount, or degree of something.

Decrease

A reduction in size, number, value, or extent of something.

Work and Family Demands

The pressures and obligations from both one's professional life and personal family responsibilities, often highlighting the challenge of balancing the two.