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Standard error of the sample? proportion

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A survey of 250students is selected randomly on a large university campus. They are asked if they use a laptop in class to take notes. Suppose that based on the? survey, 150 of the 250students responded? "yes."

?a) What is the value of the sample proportion Modifying Above p with caret?

?b) What is the standard error of the sample? proportion?

?c) Construct an approximate 95?% confidence interval for the true proportion p by taking plus or minus 2 +- SEs from the sample proportion.

Reference no: EM131705593

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