Given N = 17, S² = 18 $\le$ $\sigma$ ² $\le$ 363848
B)23

question 87

Multiple Choice

Given n = 17, s² = 18.56, and that the population is normally distributed, the 80% confidence interval for the population variance is ________.

• A)11.4372 \(\le\) \(\sigma\) ² \(\le\) 36.3848
• B)23.5418 \(\le\) \(\sigma\) ² \(\le\) 9.31223
• C)12.6141 \(\le\) \(\sigma\) ² \(\le\) 31.8892
• D)11.2929 \(\le\) \(\sigma\) ² \(\le\) 37.2989
• E)14.2929 \(\le\)\(\sigma\) ² \(\le\) 39.2989

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Definitions:

Open Market Operations

Monetary policy actions where central banks buy or sell government securities in the open market to control the money supply and interest rates.

Money Supply

The overall pool of economic resources in terms of money available at a particular time in an economy, including coins, paper money, and deposits in savings and checking accounts.

Fed

Short for the Federal Reserve, which is the central banking system of the United States, responsible for monetary policy.

Required Reserve Ratio

The fraction of deposits that banks are required by law to keep on hand or with the central bank as a reserve.