Suppose That You Used a 9-Point Rating Scale and That

question 37

Multiple Choice

Suppose that you used a 9-point rating scale and that you wanted to compare men who had an annual income over $50,000 (Group 1) with men who had an annual income less than or equal to $50,000 (Group 2) on their liking of a new product.If you studied 40 men in Group 1 and they have a mean of 7 and a standard deviation of 2.5,while the 35 men in Group 2 have a mean of 5 and a standard deviation of 1.4,what is the approximate value of t using the t-test?

• A)3.43
• B)4.19
• C)2.64
• D)not enough information to determine

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Definitions:

DRD4

A gene associated with the dopamine receptor D4, involved in the neurotransmission system and linked to behaviors such as novelty seeking.

SSRI

Selective Serotonin Reuptake Inhibitors, a class of medications commonly used to treat depression and anxiety disorders by increasing the levels of serotonin in the brain.

Genome-wide Association Study

A method in genetics research that looks for associations between specific genetic variations and particular diseases or traits across a wide portion of the genome.

Personality Attributes

Personality attributes are characteristics or qualities that define an individual's distinctive patterns of thinking, feeling, and behaving.