Unit 8 - Left, Right, & Two-tailed Tests

A Left-Tailed Test would calculate the area under the curve for ________ .

• Section A

• Section B

• Both Section A & Section B

• Neither Section A nor Section B

A Right-Tailed Test calculates the area under the curve for ________ .

• Section A

• Section B

• Both Section A & Section B

• Neither Section A nor Section B

A Two-Tailed Test calculates the area under the curve for ________ .

• Section A

• Section B

• Both Section A & Section B

• Neither Section A nor Section B

In order to find the p-value for a Left-Tailed Test, you would ____________ .

• Look up the test statistic (z) in a z table then subtract it from 1.

• Look up the positive form of the test statistic (z) in the z table then double it.

• Look up the test statistic (z) in a z table.

• Look up the negative form of the test statistic (z) in the z table then double it.

In order to find the p-value for a Right-Tailed Test, you would ____________ .

• Look up the test statistic (z) in a z table then subtract it from 1.

• Look up the positive form of the test statistic (z) in the z table then double it.

• Look up the test statistic (z) in a z table.

• Look up the negative form of the test statistic (z) in the z table then double it.

In order to find the p-value for a Two-Tailed Test, you would ____________ .

• Look up the test statistic (z) in a z table then subtract it from 1.

• Look up the positive form of the test statistic (z) in the z table then double it.

• Look up the test statistic (z) in a z table.

• Look up the negative form of the test statistic (z) in the z table then double it.

Find the p-value for a Left-Tailed Test where z = - 1.98.

• p = .9761

• p = .0239

• p = .0478

• p = 1.9522

Find the p-value for a Left-Tailed Test where z = - 1.64.

• p = 1.899

• p = .1010

• p = .0505

• p = .9495

Find the p-value for a Right-Tailed Test where z = 2.33.

• p = .9901

• p = .0099

• p = .0198

• p = 1.9802

Find the p-value for a Right-Tailed Test where z = 2.10.

• p = .0179

• p = .9821

• p = .0358

• p = 1.9642