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A recent survey of 2,250 randomly selected U.S. residents asked whether or not they had used...

A recent survey of 2,250 randomly selected U.S. residents asked whether or not they had used the Internet for making travel reservations. There were 1,500 people who answered “yes,” and the remainder answered “no.” Let X be the number of people who answered “yes.”

Estimate the proportion p from this information. Then calculate the probability that X is less than or equal to 1,525.

Math   Statistics-And-Probability   
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Answer #1

You can get this probability directly from ti 83 calculator by using the command

binomcdf(2250,0.667,1525)

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