After computing a confidence interval, the user believes the results are meaningless because the width of the interval is too large. Which one of the following is the best recommendation? Group of answer choices Increase the sample size. Reduce the population variance. Increase the level of confidence for the interval. Decrease the sample size.
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From the above formulae, we can infer that confidence interval width can be reduced by reducing the margin of error, which in turn can be reduced by increasing the sample size.
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when we give a ans confidential there fore our level of the confidence for the interval is increasing more
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