Provide an Appropriate Response

question 138

Multiple Choice

Provide an appropriate response.
-An electronics store receives a shipment of eight boxes of calculators. Each box contains ten calculators. A quality control inspector chooses a box by putting eight identical slips of paper numbered 1 to 8 into a hat,
Mixing thoroughly and then picking a slip at random. He then chooses a calculator at random from the box
Selected using a similar method with ten slips of paper in a hat. He repeats the process until he obtains a
Sample of 5 calculators for quality control testing. Does this sampling plan result in a random sample? Simple
Random sample? Explain.

• A) Yes; yes. The sample is random because all calculators have the same chance of being selected. It is a simple random sample because all samples of 5 calculators have the same chance of being selected.
• B) No; yes. The sample is not random because not all calculators have the same chance of being selected. It is a simple random sample because all samples of 5 calculators have the same chance of being selected.
• C) No; no. The sample is not random because not all calculators have the same chance of being selected. It is not a simple random sample because some samples are not possible, such as a sample containing 5
• Calculators from the same box.
• D) Yes; no. The sample is random because all calculators have the same chance of being selected. It is not a simple random sample because some samples are not possible, such as a sample containing 5 calculators
• From the same box.

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Definitions:

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A theory of learning and social behavior which proposes that new behaviors can be acquired by observing and imitating others.

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The process of representing ideas, concepts, or objects through symbols, often used in communication, branding, or art.

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