Question

5.- The following data represent the effective annual revenues, in percentage, on money market accounts of a sample of 10 commercial banks in New York and a sample of 10 savings banks in New York:

Commercial banks Revenue. I Savings banks Revenue

Banco Popular 2.25 I  Anchor Savings 2.43
Bank of N.Y. 2.32 I Apple Bank Savings 2.53
Chase Manhattan 2.02 I  Carteret Savings (N.J.) 2.38
Chemical 1.92 I Crossland Savings 2.50
Citibank 2.02 I Dime Savings Bank 3.00
EAB 1.82 I Emigrant Savings 2.50
First Fidelity (N.J.) 2.10 I   First Fed (Rochester) 2.55
Marine Midland 2.38 I Green Point Savings 2.50
Midlantic Bank (N.J.) 2.30 I   Home Savings Amer 2.50
Republic Nat´l 2.28 I People´s Bank (Conn.) 2.02

Is there evidence of a difference in the average effective revenues on the money market accounts of the two types of banks in the New York area?
  (Use the significance level of .05)

Answer=

Fc=3.1789 and Fe=1.529

te=(+-)3.6429

tc=(+-)=2.1009

Answer 1