A Biology Professor Claims That, on the Average, 15% of Her

question 19

Multiple Choice

A biology professor claims that, on the average, 15% of her students get a grade of A, 20% get a B, 40% get a C, 15% get a D, and 10% get an F. The grades of a random sample of 135 students were Recorded. The following table presents the results.

$\begin{array} { c | l l l l l } \text { Grade } & 1 & 2 & 3 & 4 & 5 \\\hline \text { Observed } & 14 & 13 & 48 & 43 & 17\end{array}$

What is the value of $\chi ^ { 2 }$ ?

• A) 9.488
• B) 37.333
• C) 11.143
• D) 36.321

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Definitions:

Assertive Community Treatment

A team-based treatment model designed to provide comprehensive, community-based psychiatric treatment, rehabilitation, and support to persons with serious and persistent mental illnesses.

SMI

Stands for Severe Mental Illness, a term that refers to psychiatric disorders that significantly impair daily functioning.

Clubhouse Model

A form of psychosocial rehabilitation for people with mental illness, providing a community of support as well as opportunities for work and socialization.

Stigma

A mark of disgrace associated with a particular circumstance, quality, or person, often leading to discrimination or prejudice.