Question

In a random sample of a suded siste tax returns, it was determined that the main amount of action towed was $3486 with a standard deviation of $2508. Construct and interpreta 90% confidence terve to the mean additional amount of tax owed for at tax retums Find and interpreta con confidence interval for the mean additional amount of tax owed for seruma telect the correct choice below and it in the answer bouts to complete your choice (Use ascending order. Round to the nearest dolor as needed O A 90% of awesowed for state tax retums are between Sands OB. There is a 90% probability that the mean additional tax owed is between and OC One can be 90% confident that the mean additional tax wedis between and

Answer 1

solusion 0 Here we have lind to 90% Contidente interval. from the data! n=49 then df = 48 given CI: att C/ n twee, dit): +70109, 48) d 12 1.677 3486 1.677 2525 149 = 3486 + 16677(360.7142857 : 3486 6049178571 C.I : 2881111, 4090.92 one Can be 90%. Confident that the mean additional dan owed between 12881-11 and 14090.92