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a) Find the mamgin of ectar tor this poll it we want 95% contitence in our estmate of the petcent of teens in he countyy who go enine teveral tres a diry. (Round to one decimal place as needed) b) Explan what tho magin of enot moans: Selbct the correct choice below and 15 in the mwer bowes 10 complete yeur cheice. (Cound 59 ene decmal place as recoed A. The pertent of teere in the courty who go onlne severa omes a doy is wehn 6 of the estitatod 6. There is a(r) W chacce that the percene of ieeno in the country who go onine severvitmes a day is wethin tof the estimated D. In Hat samples of teens in the country the pevcent who go arlee several ieces a day wel be witin Wed the estimatrd 4) il we need to te only 90 t condent. wit the margh of enor be laroor or umaler Explan The mapn of eor wil be Find that marpit ol ertor. (Fiond to one fecmal place as needed) A Pew Research poil found that 45.26 of a sample of 1058 veens in a certan luge courty go onine several times a day, (Trest bis sample as a simple tandom sample) Complete pars a trough e below. b) Explain what the margin of ecroc means Select the correct choice below and ta in the anwer bawos to compbete your choice. (Round to cone decimal pace as nowode) A. The perceek of teens in the courtry who go anline severa times a day is within H of ihe estimated 0. There is a(0) ts chance that the percent of teens in the country who go orine several tires a day is wathin Wof whe eumated C. The poltien are W conident that the tue percent of teens in the country who go orline several times a day a winin wof ore estmated D. In i of samphes of seens in the country twe pereent who go onine several smes a day wal be witin 5 of the eumaxed. Find that margin of erer. (pround to one decimal place as nebded) smaler samples would produce A i ew Research poll found that 45.2% of a sample of 1058 teens in a certain large country go online several times a day. (Treat this sample as a simple random sample.) Complete parts a through e below. a) Find the margin of error for this poll if we want 95% confidence in our estimate of the percent of teens in the country who go online several times a day. Y (Round to one decimal place as needed.) b) Explain what the margin of error means. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to one decimal place as needed.) A. The percent of teens in the country who go online several times a day is within % of the estimated B. There is a(n) \% chance that the percent of teens in the country who go online several times a day is within % of the estimated %. C. The pollsters are % confident that the true percent of teens in the country who go online several times a day is within % of the estimated \%. D. In \% of samples of teens in the country, the percent who go online several times a day will be within 96 of the estimated Y. c) If we need to be only 90% confident, will the margin of error be larger or smaller? Explain. Pew Research poll found that 45.2% of a sample of 1058 teens in a certain large country go online several times a lay. (Treat this sample as a simple random sample.) Complete parts a through e below. C. The pollsters are \% confident that the true percent of teens in the country who go online several times a day is within % of the estimated %. D. In \% of samples of teens in the country, the percent who go online several times a day will be within % of the estimated % c) If we need to be only 90% confident, will the margin of error be larger or smaller? Explain. The margin of error will be since the implied by the new confidence level d) Find that margin of error. (Round to one decimal place as needed.) e) In general, if all other aspects of the situation remain the same, would smaller samples produce smaller or larger margins of error? Smaller samples would produce margins of error, since a smaller sample will cause to be
