Consider the Following Printout $\mathrm { X } = \mathrm { x }$

question 19

Multiple Choice

Consider the following printout. HYPOTHESIS: VARIANCE $\mathrm { X } = \mathrm { x }$
$$X = \text { gpa }$$

$$\begin{aligned}\text { SAMPLE MEAN OF X \( =2.2911 \) }\\\text { SAMPLE VARIANCE OF X \( =.18000 \) }\\\text { SAMPLE SIZE OF X \( =199 \) }\\\text { HYPOTHESIZED VALUE \( (x) =2.4 \) }\\\\\text { VARIANCE } X - x & = - .1089 \\z & = - 3.62091\end{aligned}$$ Suppose we tested Ha: ? < 2.4. Find the appropriate rejection region if we used ? = .05.

• A) Reject if z < -1.645.
• B) Reject if z > 1.645 or z < -1.645.
• C) Reject if z > 1.96 or z < -1.96.
• D) Reject if z < -1.96.

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Definitions:

Hand Washing

The act of cleaning the hands with soap and water or hand sanitizer to prevent the spread of infection.

Lather

The frothy foam created by agitating soap with water, commonly used for cleaning or bathing.

Rings and Watches

Personal jewelry items worn on fingers and wrists that can pose safety hazards or interfere with medical procedures if not removed.

Hot Water

Water heated to a temperature suitable for bathing, washing, or cooking.