A survey of 200 students is selected randomly on a large university campus. They are asked if they use a laptop in class to take notes. The result of the survey is that 70 of the 200 students responded “yes.” a. What is the value of the sample proportion who responded “yes”? b. Construct a 95% confidence interval for the true proportion who responded “yes”.

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2. A survey of 200 students is selected randomly on a large university campus. They are
asked if they use a laptop in class to take notes. The result of the survey is that 70 of the
200 students responded “yes.”


a. What is the value of the sample proportion who responded “yes”?


b. Construct a 95% confidence interval for the true proportion who responded
“yes”.

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