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2. To find out if customers are happy with the store hours, the Independent Grocer randomly surveyed 500 customers who bought groceries for one week. Is this sample biased or reliable? Justify your answer.

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Final answer:

Sampling methods can introduce bias, affecting data reliability. Randomly surveying a diverse group of customers improves reliability.


Explanation:

Biased: Sampling methods can introduce bias, affecting the reliability of the data. In the case of surveying only customers who bought groceries for one week, this creates a biased sample as it excludes those who may have different shopping habits.

Reliable: A reliable sample is one that accurately represents the entire population. Randomly surveying a diverse group of 500 customers would yield more reliable results compared to only surveying a specific subset.

Representative: To ensure reliability, samples should be representative of the population being studied to draw accurate conclusions.


Learn more about sampling and bias in data collection here:

https://brainly.com/question/50884363


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