Uly Shorten their lives. 22.29 22.26 Reporting cheating. Students are reluctant

Question

Uly Shorten their lives. 22.29 22.26 Reporting cheating. Students are reluctant to report cheating by other students. A student project put this question to an SRS of 172 undergraduates at a large university: "You witness two students cheat- ing on a quiz. Do you go to the professor?" Only 19 answered "yes.no Give a 95% confidence interval for the proportion of all undergraduates at this univer- sity who would report cheating. Harris announces a margin of error. Exercise 22.25 describes a Harris Poll survey of smokers in which 22.27

Explanation / Answer

22.26

Here' the answer to the problem in detail, with formuale. Please don't hesitate to give a "thumbs up" in case you're satisfied with the answer.

p(yes) = no. of students who said "yes"/total students= 19/172 =.1105

Give a 95% CI :

p^ +/- Z*Sqrt(p^*p^'/n)

= .1105 +/- 1.96*sqrt(.1105*.8895/172)

= 0.0637 to 0.1574

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