A Researcher Wants to Determine Whether the Means of Two

question 86

Multiple Choice

A researcher wants to determine whether the means of two independent populations are the same.She has two independent random samples,one from each population,shown in the following table: She uses the Mann-Whitney U test and a significance level of 0.05.The sum of ranks for sample II is ______.

• A) 72
• B) 73
• C) 75
• D) 77
• E) 78

---

Definitions:

Left

A direction or side that is opposite to right, often associated with the left side of the body or objects.

Abdominopelvic Cavity

An anatomical space in the human body that houses both the abdominal and pelvic organs, including the stomach, liver, and bladder.

Parietal Peritoneum

The outer layer of the peritoneum that lines the abdominal and pelvic cavities, not directly in contact with the organs.

Retroperitoneal

Referring to organs located behind the peritoneum, the serous membrane lining the abdominal cavity and covering the abdominal organs.