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A computer outlet store receives a shipment of 2000 computer chips. The owner decides to randomly choose 36 chips and test them. (a) What is the population (actually the group of elementary units) in this study? (b) What is the sample? (c) If the 36 chips are all chosen from the top layer of the box of 2000 chips, is this a random sample? why or why not?

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Answer:

a

The population is 2000

b

The sample is 36

c

No this is not a random sample

Explanation:

From this question we are told that

A computer outlet store receives a shipment of 2000 computer chips

The number of unites chosen by the owner is n= 36

Generally the population for this statistical test is N = 2000

This is because the 2000 is the entire pool from which a statistical sample is drawn

Generally 36 is the sample because this is the number that will be statistically tested and its result will be generalized for every other element of the population

Now if the 36 chips are all selected from the top then the sample is not a random sample because in a sample each element of the sample have an equal likelihood of been selected from the population but in the case of the question each element are selected base it accessibility

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