Given the Following Information About a Hypothesis Test of the Difference

question 30

Multiple Choice

Given the following information about a hypothesis test of the difference between two means based on independent random samples,which one of the following is the correct rejection region at a significance level of .05?
H_A: ?_A > ?_B, $\bar { X } _ { 1 } = 12$
$\bar { X } _ { 2 } = 9$
S₁ = 4,s₂ = 2,n₁ = 13,n₂ = 10.

• A)Reject H₀ if t > 1.96
• B)Reject H₀ if t > 1.645
• C)Reject H₀ if t > 1.721
• D)Reject H₀ if t > 2.08
• E)Reject H₀ if t > 1.782

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Definitions:

Vision

The ability to see, which involves the process of the eye capturing light and sending signals to the brain to create visual images.

Control

In experimental research, control refers to the standard to which experimental results are compared, achieved by manipulating variables and keeping all others constant.

Broca's Area

A region in the frontal lobe of the dominant hemisphere of the brain with functions linked to speech production.

Frontal Lobe

The part of the brain located at the front of each cerebral hemisphere, involved in decision making, problem solving, and control of purposeful behaviors.