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Unformatted text preview: P( X > 10.5), if the population mean = 10, s.d. = 2, and a random sample of size n= 100, etc. Chapter 8: 1. Know how to find the confidence interval for population mean when n is large (i.e. n 30), population s.d. is known (hint: use zvalue) 2. Know how to find the confidence interval for population mean when n is large (i.e. n 30), population s.d. is unknown (hint: use tvalue) 3. Know how to find the confidence interval for population mean when n is small (i.e. n < 30), population follows a normal distribution , and is known (hint: use zvalue.) 4. Know how to find the confidence interval for population mean when n is small (i.e. n < 30), population follows a normal distribution , and is unknown (use tvalue) 5. If n is small (i.e. n < 30), population does not follow a normal distribution , what will you do? (hint: increase the n to be greater than 30, then decide if is known or not.)...
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This note was uploaded on 02/22/2011 for the course ACCOUNTING 101 taught by Professor Jamesbrown during the Spring '10 term at Abilene Christian University.
 Spring '10
 jamesbrown
 Accounting

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