Question

Which of the following is CORRECT?
a) We do not need to randomize if our sample size is sufficiently large.
b) A large sample size always
ensures that our sample is
representative of the population.
c) If all other things are equal, we need a larger sample size for a larger population.
d) In a properly chosen sample, an estimate will be less variable with a large sample size and hence more precise.
e) In random samples, the
randomization ensures that we get precise and accurate estimates.​

Answer 1

Answer:

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