his Question: 1pt 1ofcomplete) | This Quiep in a random sample of 100 audited es

Question

his Question: 1pt 1ofcomplete) | This Quiep in a random sample of 100 audited estate tax refums, t was determined that the mesn amount of addtional tax owad was $3446 with a standard deviaton of 52550 Construct rd interpret a 90% confidence interval 1r he mean additional amount of tax owed for estate tax retums Cick the icon to view the 1-distribution table The lower bound is S (Round to the nearest dollar as needed) The upper bound it SRundto the ntaest dollar as needed ) Ineprat a 90% confidence interval for the moon addional amount of tax owed for estate tax returns Choose the correct anavar below A. One can be 9D% comident thst the mean addtonai tai owed is greater than the upper bound B: can ba 90% corisdent that the mean oddíional tax owed is between the lower nnd upper bounds c. on. can be 90% cor6dent tat te mean addional Ins owed is iess than he insr bound

Explanation / Answer

n = 100

Mean = 3446
Stdev = 2550

The lower bound is 3446 - 1.28*2550/sqrt(100) = 3119.6

The upper bound is 3446 + 1.28*2550/sqrt(100) = 3772.4

Option B is the right interpretation

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