Mathematics, 26.11.2019 23:31 levicorey846
In a sample of 610 boston-area residents selected on july 2, 209 reported that they were planning to travel beyond massachusetts for the july 4th holiday.
(a) use these data to find a 95% confidence interval for the proportion (p) of all boston-area residents who plan to travel beyond massachusetts for the holiday. [you may assume that the sample is random.]
(b) repeat part (a) but compute a 90% confidence interval for p.
(c) repeat part (a) but compute an 80% confidence interval for p.
(d) explain how the margins of error associated with your intervals in parts (a), (b), and (c) vary with the level of confidence (c) desired.
Answers: 3
Mathematics, 21.06.2019 19:00
John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11
Answers: 2
In a sample of 610 boston-area residents selected on july 2, 209 reported that they were planning to...
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