The distribution of sample means for students taking the SAT exam has a population mean of ? = 500 and a standard error of ?M = 200, What proportion of sample means for students taking the SAT would fall between the sample mean of M = 300 and a sample mean of M = 500? What sample means for students taking the SAT mark the middle 85% if the population mean was 500 and the standard error was 200?

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter7: Applying Fractions
Section7.2: Proportions
Problem 47WE
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Answer each of the following:
The distribution of sample means for students taking the SAT exam has a population mean of ? = 500 and a standard error of ?M = 200,

  • What proportion of sample means for students taking the SAT would fall between the sample mean of M = 300 and a sample mean of M = 500?
  • What sample means for students taking the SAT mark the middle 85% if the population mean was 500 and the standard error was 200?

 

 

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