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Excursions in Modern Mathematics: Pearson New International Edition | 8th Edition | ISBN: 9781292022048 | Authors: Peter Tannenbaum
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You are a fruit wholesaler. You have just received 250 crates of pineapples: 75 crates

Chapter 14, Problem 35

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QUESTION:

You are a fruit wholesaler. You have just received 250 crates of pineapples: 75 crates came from supplier A, 75 crates from supplier B, and 100 crates from supplier C. You wish to determine if the pineapples are good enough to ship to your best customers by inspecting a sample of n = 20 crates. Describe how you might implement each of the following sampling methods. (a) Simple random sampling (b) Convenience sampling (c) Stratified sampling (d) Quota sampling

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QUESTION:

You are a fruit wholesaler. You have just received 250 crates of pineapples: 75 crates came from supplier A, 75 crates from supplier B, and 100 crates from supplier C. You wish to determine if the pineapples are good enough to ship to your best customers by inspecting a sample of n = 20 crates. Describe how you might implement each of the following sampling methods. (a) Simple random sampling (b) Convenience sampling (c) Stratified sampling (d) Quota sampling

ANSWER:

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(a) In simple random sampling, any subset of the group is likely to be chosen as any other subset of equal size. If this situation were truly simple random sampling, then it would be possible to have a sample which includes two consecutive students in the list, like Andre Weil and Andrew Weil. These students might represent the  and  students in the list; since they are not 100 spaces apart, there is no chance to find both names in one sample.

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