SOLUTION: A survey was done to determine the texting habits of MBHS students. An SRS of 270 students wereasked several questions related to texting and cell phone usage. Of particular inter

Algebra ->  Probability-and-statistics -> SOLUTION: A survey was done to determine the texting habits of MBHS students. An SRS of 270 students wereasked several questions related to texting and cell phone usage. Of particular inter      Log On


   

Question 1193062: A survey was done to determine the texting habits of MBHS students. An SRS of 270 students wereasked several questions related to texting and cell phone usage. Of particular interest to the researcherswas the proportion of students who text while in class. Of those surveyed, 178 said that they text duringclass at least ten times per week. Identify each of the following as specifically as possible. a) Population of Interest b) Parameter of Interest c) Sample d) Statistic e) Margin of Error f) 95% Confidence Interval g) Confidence Statement h) Do you personally feel that this is too high or too low of an estimate of the proportion of teens at your high school who text during class?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Population is the MBHS students
Parameter is % who text in class at least 10 times a week
270 students were the sample
margin of error is 1.96*sqrt(p*(1-p)/n)=1.96 * sqrt (0.659*0.341/270)=0.057 or 5.7%
95% interval is (0.602, 0.716)
I don't know what the exact value is for the entire population, but I am 95% confident it lies in the interval above.