Mathematics
Mathematics, 27.11.2019 23:31, OceanClaws

Fewer young people are driving. in 1983, 87 percent of 19 year-olds had a driver's license. twenty-five years later that percentage had dropped to 75 percent (university of michigan transportation research institute website, april 7, 2012). suppose these results are based on a random sample of 1200 nineteen year-olds in 1983 and again in 2008.a. at 95% confidence, what is the margin of error and the interval estimate of the number of nineteen year old drivers in 1983? round your answers to three decimal places. margin of error = (four decimal places)interval estimate = tob. at 95% confidence, what tis the margin of error and the interval estimate of the number of nineteen year old drivers in 2008? round your answers to four decimal places. margin of error =interval estimate = toc. is the margin of error the same in parts (a) and ( select your answer -yeswhy, or why not?

answer
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 16:00, michellealvarez985
Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related
Answers: 1
image
Mathematics, 21.06.2019 22:30, NearNoodle23
Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.
Answers: 1
image
Mathematics, 22.06.2019 00:00, jetskiinbunny31
The statements below can be used to prove that the triangles are similar. ? △abc ~ △xyz by the sss similarity theorem. which mathematical statement is missing? ∠b ≅ ∠y ∠b ≅ ∠z
Answers: 2
image
Mathematics, 22.06.2019 01:00, Mrlittlefish
Is the ordered pair (-10, 7) a solution to the equation y = 17 – x? yes or no
Answers: 1
Do you know the correct answer?
Fewer young people are driving. in 1983, 87 percent of 19 year-olds had a driver's license. twenty-f...

Questions in other subjects: