Mathematical statistics answer question #30

Statistics
Tutor: None Selected Time limit: 1 Day

Mar 19th, 2015

32(a) The survey give a sample proportion of student.

1;15O wear surverd accourdind to the description(100 student)

2;and90% responsded and 108 unfqmiliqr our sample proportion 0.8

3;The sample proportion is our best estimater

4; so 0.8*15,000=12,000 student

B;The result of the sample survey shold be somewhat  reliable- we have high responsebal rate. so the limite error itroduced by non reponse.

Mar 19th, 2015

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