A Sociologist Develops a Test Designed to Measure a Person's

question 16

Multiple Choice

A sociologist develops a test designed to measure a person's attitudes about disabled people,and 16 randomly selected subjects are given the test.Their mean score is 71.2 with a standard deviation of 10.5.If the score is normally distributed,the 99% confidence interval for the mean score of all subjects would be _____.

• A)[40.26,102.14]
• B)[63.46,78.94]
• C)[60.66,81.74]
• D)[64.44,77.96]
• E)[63.21,79.19]

---

Definitions:

Head Node

The first node in a linked list or tree data structure.

Object

In programming, an object is an instance of a class that contains both data, in the form of fields, and methods, which are functions specific to the class.

NullPointerException

An exception thrown in Java when an application attempts to use an object reference that has the null value, indicating that no object has been assigned to the reference.

Preorder Traversal

A way of traversing a tree data structure where each node is visited before its child nodes in a top-down, left-right manner.