A random sample of 70 printers discovered that a20 of them, Ask an Expert

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A random sample of 70 printers discovered that a20 of them were being used in small businesses. Find the 99% limit for the population porportion of printers that are used in small businesses.

possible answers:

0.021 < p < 0.551

0.146 < p < 0.425

0.160 < p < 0.412

0.239 < p < 0.332

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