Describe the sample distribution of p-hat the sample, Ask an Expert

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A nationwide study indicated that 80% of college students with a cell phone send and receive text messages with their phones. A simple random sample of n=200 college students with cell phones is obtained.

A) describe the sample distribution of p-hat, the sample proportion of college students with cell phones who send or receive text messages with their phones.

B) What is the probability that 154 or fewer college students in the sample send and receive text messages with their cell phones? Is this result unusual?

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