We wish to estimate the population proportion of undergraduate students at a university that use dorm moving services, with a 90 % confidence level and a margin of error E=0.044. A) Read carefully the text and provide each of the following: The error is E= the confidence level is CL = %. B) Find the critical value za2 which is the zscore for which the right area is a2. za2= (Hint: keep in mind that a=1−the confidence level) C) If the sample proportion is unknown, how large should the sample size be? Such a sample size is n= . D) If the sample proportion is estimated by 0.366, how large should the sample size be? Such a sample size is n=

We wish to estimate the population proportion of undergraduate students at a university that use dorm moving services, with a 90 % confidence level and a margin of error E=0.044. A) Read carefully the text and provide each of the following: The error is E= the confidence level is CL = %. B) Find the critical value za2 which is the zscore for which the right area is a2. za2= (Hint: keep in mind that a=1−the confidence level) C) If the sample proportion is unknown, how large should the sample size be? Such a sample size is n= . D) If the sample proportion is estimated by 0.366, how large should the sample size be? Such a sample size is n=

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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