A Teacher Finds That Final Grades in the Statistics Department $40 \%$

question 7

Multiple Choice

A teacher finds that final grades in the statistics department are distributed as: A, 25\%; B, 25\%; C, $40 \%$ ; D, $5 \% ; F , 5 \%$ . At the end of a randomly selected semester, the following grades were recorded. Find the rejection region used to determine if the grade distribution for the department is different than expected. Use $\alpha = 0.01$ .
$\begin{array}{l|lllll}\text { Grade } & \text { A } & \text { B } & \text { C } & \text { D } & \text { F } \\\hline \text { Number } & 36 & 42 & 60 & 8 & 14\end{array}$

• A) \(\chi ^ { 2 } > 13.277\)
• B) \(\chi ^ { 2 } > 9.488\)
• C) \(\chi ^ { 2 } > 7.779\)
• D) \(\chi ^ { 2 } > 11.143\)

Understand the impact of cultural and societal norms on personality, particularly regarding gender roles.

Understand the role of parenting styles and early childhood experiences on personality development.

Comprehend the debate on the influence of genetic vs. environmental factors on personality.

Recognize the significance of different life stages on the development and change of personality traits.

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