A Quality Analyst Wants to Construct a Sample Mean Chart

question 105

Multiple Choice

A quality analyst wants to construct a sample mean chart for controlling a packaging process. He knows from past experience that whenever this process is under control, package weight is normally distributed with a mean of 20 ounces and a standard deviation of two ounces. Each day last week, he randomly selected four packages and weighed each: $$\begin{array} { r } { \text { Weight (ounces) } }\\\begin{array} { l l l l l } \text { Day } \\\hline \text { Monday } & 23 & 22 & 23 & 24 \\\text { Tuesday } & 23 & 21 & 19 & 21 \\\text { Wednesday } & 20 & 19 & 20 & 21 \\\text { Thursday } & 18 & 19 & 20 & 19 \\\text { Friday } & 18 & 20 & 22 & 20\end{array}\end{array}$$ If he uses upper and lower control limits of 22 and 18 ounces, on what day(s) , if any, does this process appear to be out of control?

• A) Monday
• B) Tuesday
• C) Monday and Tuesday
• D) Monday, Tuesday, and Thursday
• E) none

Comprehend the biological and evolutionary basis for mate selection and attractiveness.

Grasp the role of physical attractiveness in social perception and interpersonal relationships.

Understand the universal and cultural aspects of attractiveness and partner preferences.

Describe the impact of similarity and equity on relationship satisfaction and durability.

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Definitions:

Disturbed Person

An individual experiencing mental or emotional disruption, impacting their daily functioning or behavior.

Smoking

The act of inhaling and exhaling the smoke of tobacco or a drug, which can lead to various health issues including lung cancer.

Conscious

Pertaining to being aware of one's own existence, sensations, thoughts, surroundings, etc.

Uniqueness

The quality of being one of a kind, distinct from all others in specific or subtle ways.