A Local Consumer Reporter Wants to Compare the Average Costs

question 63

Multiple Choice

A local consumer reporter wants to compare the average costs of grocery items purchased at three different supermarkets, A, B, and C. Prices (in dollars) were recorded for a sample of 60 randomly selected grocery items at each of the three supermarkets. In order to reduce item-to-item variation, the prices were recorded for each item on the same day at each supermarket.

$\begin{array} { l l c c c } \hline & { \text { Item } } & \mathrm { A } & \mathrm { B } & \mathrm { C } \\\hline 1 ) & \text { paper towels } & 1.21 & 1.41 & 1.36 \\2 ) & \text { cereal } & 2.84 & 3.29 & 3.04 \\\text { 3) } & \text { floor cleaner } & 5.97 & 5.85 & 6.86 \\\vert &\vert&\vert&\vert& \vert \\59 ) & \text { shaving cream } & 1.04 & 0.94 & 1.00 \\\text { 60) } & \text { canned green beans } & 0.53 & 0.68 & 0.45 \\\hline\end{array}$

Identify the treatments for this experiment.

• A) the three supermarkets
• B) the 60 grocery items
• C) the day on which the data were collected
• D) the \(60 \times 3 = 180\) prices

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Definitions:

Structuralists

Early psychologists who analyzed the basic elements of thoughts and sensations to understand the structure of the mind.

Psychoanalysts

Professionals who practice psychoanalysis, a therapeutic technique originally developed by Sigmund Freud to explore the unconscious mind.

Fundamentalists

Individuals or groups who strictly adhere to the foundational principles of their beliefs or doctrines, often in a literal or conservative manner.

Stream of Consciousness

A narrative mode or method that attempts to capture the flow of thoughts and feelings running through the mind.