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Please help for test A researcher wants to estimate the mean exposure to a certain type of internet ads. Originally they found a 99% confidence

Please help for test

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A researcher wants to estimate the mean exposure to a certain type of internet ads. Originally they found a 99% confidence interval, and then, with all other factors the same, they decreased the confidence level to 90%. As a result... 0 the confidence interval will become narrower O the confidence interval will become wider O the confidence interval may get wider or narrower O the confidence interval will not change 0 none of the above

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