Question
Consider a designed study focused on estimation of the POPULATION AVERAGE commute time based on independent sample. Individual records are normal, with the population standard
Consider a designed study focused on estimation of the POPULATION AVERAGE commute time based on independent sample. Individual records are normal, with the population standard deviation == 10 minutes. The goal is to estimate the target withC= 90% confidence in such a way that the WIDTH of this interval will not exceed 6 minutes.
1. Specify the critical value you are going to use
2. Determine the SMALLEST SAMPLE SIZE needed for your designed study 3. Find the width of a 90% confidence interval based on a sample of sizen= 25.
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Sample Size Determination In Clinical Trials With Multiple Endpoints
Authors: Takashi Sozu, Tomoyuki Sugimoto, Toshimitsu Hamasaki, Scott R Evans
1st Edition
3319220055, 9783319220055
