A Lab Technician Is Tested for Her Consistency by Making $1.2 \mathrm { mg } / \mathrm { dL }$

question 121

Multiple Choice

A lab technician is tested for her consistency by making multiple measurements of the cholesterol level in one blood sample. The target precision is a standard deviation of $1.2 \mathrm { mg } / \mathrm { dL }$ or less. If 12 measurements are taken and the standard deviation is
$2.1 \mathrm { mg } / \mathrm { dL }$ , is there enough evidence to support the claim that her standard deviation is greater than the target, at $\alpha = 0.01$ ?

• A) No, since the \(\chi ^ { 2 }\) test value \(19.25\) is less than the critical value \(26.217\).
• B) Yes, since the \(\chi ^ { 2 }\) test value \(33.688\) is greater than the critical value \(24.725\).
• C) No, since the \(\chi ^ { 2 }\) test value \(19.25\) is less than the critical value \(24.725\).
• D) Yes, since the \(\chi ^ { 2 }\) test value \(33.688\) is greater than the critical value \(26.217\).

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Definitions:

Social-cognitive Perspective

A psychological perspective that emphasizes how people's thoughts, beliefs, and interpretations of social situations affect their behavior and attitudes.

Psychological Perspectives

Various approaches within psychology to understand human behavior and mental processes, including cognitive, behavioral, and psychodynamic perspectives.

Violent Role Models

Individuals who exhibit aggressive behavior and may influence others, especially children, to act in a similar manner.

Functionalism

A perspective in sociology and psychology that emphasizes the importance of the roles that components of a society or mind serve in making the whole functional.