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anonymous

  • one year ago

The manager of a sawmill wants to find out what percentage of the boards that the mill produced are defective. Which sampling methods are likely to be biased? Choose all answers that are correct. A. The manager selects 20 boards at random each day for 5 days and examines them. B. The manager sends an email to 20 customers who buy lumber from the mill, asking each how many of the boards they bought the past week were defective. Results from the first 5 customers to respond are tallied.

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  1. anonymous
    • one year ago
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    C. On 1 day, an hour after the sawmill begins production, 30 boards in a row are selected and examined. D. Every 40th board produced over the course of 1 week is selected and examined.

  2. TD5
    • one year ago
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    If you want to find out which methods are biased, you would search for the ones of which do not represent a whole of people.

  3. TD5
    • one year ago
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    With this in mind, one answer is easily picked out.

  4. anonymous
    • one year ago
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    so i need to check it and read

  5. TD5
    • one year ago
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    Yes

  6. TD5
    • one year ago
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    A slight hint: There are two answers.

  7. anonymous
    • one year ago
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    i think a and c

  8. TD5
    • one year ago
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    You are close. C is correct, but A is not.

  9. anonymous
    • one year ago
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    c and b

  10. TD5
    • one year ago
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    Fantastic! You are correct.

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