b. between 2 According to Cardweb.com the mean bank credit card debt for households FE07 was $7868 in 2004. Assume that mean was based on a random sample of 900 households and that the standard deviation of such debts for all households in 2004 was $ 2070. Make a 99% and a 99.22% confidence interval for the 2004 mean bank credit card debt for all households JAn alumni association wants to estimate the mean debt for this year's college graduates. It is known that the population standard deviation of the debts of this years college graduates is $11,800. How large a sample should be selected so that the estimate with a 99% confidence level is within $800 of the population mean How large a sample should be selected so that the estimate with a 94.64% confidence level is within 5900 of the population mean
b. between 2 According to Cardweb.com the mean bank credit card debt for households FE07 was $7868 in 2004. Assume that mean was based on a random sample of 900 households and that the standard deviation of such debts for all households in 2004 was $ 2070. Make a 99% and a 99.22% confidence interval for the 2004 mean bank credit card debt for all households JAn alumni association wants to estimate the mean debt for this year's college graduates. It is known that the population standard deviation of the debts of this years college graduates is $11,800. How large a sample should be selected so that the estimate with a 99% confidence level is within $800 of the population mean How large a sample should be selected so that the estimate with a 94.64% confidence level is within 5900 of the population mean
Step by step
Solved in 2 steps with 5 images
