Several factors are involved in the creation of a confidence interval. Among them are the sampleâ€‹...

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Advance Math

Several factors are involved in the creation of a confidenceinterval. Among them are the sampleâ€‹ size, the level ofâ€‹confidence, and the margin of error. Which statements areâ€‹true?
Select all true statements below.
A.
For a certain confidenceâ€‹ level, you can get a smaller margin oferror by selecting a bigger sample.
B.
For a given sampleâ€‹ size, reducing the margin of error will meanlower confidence.
C.
For a given confidenceâ€‹ level, a sample 9 times as large willmake a margin of error one third as big.
D.
For a fixed margin ofâ€‹ error, smaller samples will mean lowerconfidence.
E.
None of these statements are true.

Answer & Explanation Solved by verified expert

4.4 Ratings (954 Votes)

A For a certain confidence level you canget a smaller margin of error by selecting a biggersampleAnswer TrueJustification The margin of error is the rangeof value below and above the sample statistic in confidenceintervalWhen the sample size increases we get more information aboutthe population proportion As a result our estimate See Answer

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