ews survVey 1ounu 80%o UI a sample of teens sald they piayer. Assume that the sample is an SRS. 1) Based on this sample, calculate a 90% confidence interval for all U.S. teens who own an MP3 player. ) Without calculating, suppose we compute a large-sample 80% Confidence Interval for all U.S. teens who own an MP3 player. Would the margin of error be larger or smaller than in (a)? Why? :) How many U.S. teens must be interviewed to estimate the proportion who own an MP3 player within +/- 0.02 with a 99% Confidence using the large-sample confidence interval? Use 0.5 as the conservative guess for the value of p*.

ews survVey 1ounu 80%o UI a sample of teens sald they piayer. Assume that the sample is an SRS. 1) Based on this sample, calculate a 90% confidence interval for all U.S. teens who own an MP3 player. ) Without calculating, suppose we compute a large-sample 80% Confidence Interval for all U.S. teens who own an MP3 player. Would the margin of error be larger or smaller than in (a)? Why? :) How many U.S. teens must be interviewed to estimate the proportion who own an MP3 player within +/- 0.02 with a 99% Confidence using the large-sample confidence interval? Use 0.5 as the conservative guess for the value of p*.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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