A Local Consumer Reporter Wants to Compare the Average Costs

question 18

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. Identify the treatments for this experiment.

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

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Definitions:

Ethnic Group

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Enduring characteristics that describe an individual's behavior, attitude, and emotional patterns.

Ambiguous Symptoms

Symptoms that are not clear or precise in their indication, making it difficult to diagnose the underlying condition accurately.

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