Question

O Question Help In a random sample of 81 audited estate tax retums, it was determined that the mean amount of additional tax owed was $3442 with a standard deviation of $2554. Construct and interpreta 90% confidence interval for the mean additional amount of tax owed for state tax returns. Click here to view the standard, normal distribution table trage 11 Click here to view the standard normal distribution obloge 21 Click here to view the table of crical values Find and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax retums. Select the correct choice below and fill in the answer boxes to complete your choice (Use wonding order. Round to the nearest dollar as needed.) O A. There is a 90% probability that the mean additional tax owed is between $ and $ OB. 90% of taxes Owed for estate tax returns are between and $ C. One can be 90% confident that the mean additional tax owed is between Sands More . . Clear Al Click to select and enter your answers) and then click Check Answer All parts showing & 7 % 5 6 # 3 N® S 4 a Y U T R E J G F H D

Answer 1

Given intasmation - 81 T = $3442 Confidence interval ô = $2554 + Za х for x 0.os 1-64 * can be written as 3442 + 1.64 x 2554 81 ladditional tax owned 3442 + 1.64* (283.77 [2976.617 3907.382 Option (e) is correct One can be 90% confident that the mean is between $2976.617 and $ 3907.382 In other words. it one draws somple then out of those 100 at least gs sample will have mean Value between $2976.617 to & 3907.382