Discuss about the changes in the confidence interval

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Reference no: EM131772564

Question: Explain whether the width of a confidence interval would increase, decrease or remain the same as a result of each of the following changes:

a. The sample size is doubled, from 400 to 800.

b. The population size is doubled, from 25 million to 50 million.

c. The level of confidence is lowered from 95% to 90%.

Reference no: EM131772564

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