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In a sample of n = 400 IUPUI undergraduate students polled x = 128 stated that they are planning to go to graduate school. The

In a sample of n = 400 IUPUI undergraduate students polled x = 128 stated that they are planning to go to graduate school.

The lower and upper end of a90%confidence interval for the proportion of IUPUI undergraduate students who plan to go to graduate school are L = ______ and U = _____.

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0.274 0.366

0.282 0.358

0.290 0.350

0.298 0.342

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