A sample survey of 842 adult Internet users found that 67% look for information on the...
A sample survey of 842 adult Internet users found that 67% look for information on the online collaborative encyclopedia Wikipedia. (
a) Give the standard error SE of p̂, the proportion of all adult Internet users who look for information on Wikipedia. (Round your answer to four decimal places.) SE =
(b) Give a 95% large sample confidence interval for the proportion of all adult internet users who look for information on Wikipedia.
-0.624 to 0.716
-0.615 to 0.725
-0.638 to 0.702
-0.643 to 0.697
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A sample survey of 842 adult Internet users found that 67% look
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significance level a =
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