In a random sample of 81 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3486 with a standard deviation of $2517. Construct and interpret a 90%...

Extracted text: In a random sample of 81 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3486 with a standard deviation of $2517. Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. A Click the icon to view the t-distribution table. The lower bound is S (Round to the nearest dollar as needed.) The upper bound is $. (Round to the nearest dollar as needed.) Interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. Choose the correct answer below. O A. One can be 90% confident that the mean additional tax owed is between the lower and upper bounds. O B. One can be 90% confident that the mean additional tax owed is less than the lower bound. O C. One can be 90% confident that the mean additional tax owed is greater than the upper bound.