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TEST SAMPLE SIZE: 30 TEST TAX RANGE: ? STANDARD DEVIATION: ? MEAN : ? We took...

TEST SAMPLE SIZE: 30

TEST TAX RANGE: ?

STANDARD DEVIATION: ?

MEAN : ?

We took 15 states with the highest tax rate and 15 state with the lowest tax rate.

We are going to set alpha to .1 to determine the covariance with 90% confidence

*Please answer the top part and also state whether the test rejects the null or does not reject the null hypothesis.

State

Lowest Rate

State

Highest Rate

Alaska

6.5%

New York

12.7%

Wyoming

7.1%

Connecticut

12.6%

South Dakota

7.1%

New Jersey

12.2%

Tennessee

7.3%

California

11.0%

Louisiana

7.6%

Illinois

11.0%

Texas

7.6%

Wisconsin

11.0%

New Hampshire

7.9%

Maryland

10.9%

Nevada

8.1%

Rhode Island

10.8%

South Carolina

8.4%

Minnesota

10.8%

Oklahoma

8.6%

Massachusetts

10.3%

Mississippi

8.6%

Vermont

10.3%

New Mexico

8.7%

Oregon

10.3%

Montana

8.7%

Delaware

10.2%

Alabama

8.7%

Hawaii

10.2%

Arizona

8.8%

Pennsylvania

10.2%
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