SCENARIO 13-9 It Is Believed That, the Average Numbers of Hours Spent

question 80

Multiple Choice

SCENARIO 13-9
It is believed that, the average numbers of hours spent studying per day (HOURS) during undergraduate education should have a positive linear relationship with the starting salary (SALARY, measured in thousands of dollars per month) after graduation. Given below is the Excel output for predicting starting salary (Y) using number of hours spent studying per day (X) for a sample of 51 students. NOTE: Only partial output is shown.


Note: 2.051 E - 05 = 2.051*1^0-5 and 5.944 E -18 = 5.944 *10 ^-18 .
-Referring to Scenario 13-9,the 90% confidence interval for the average change in SALARY (in thousands of dollars) as a result of spending an extra hour per day studying is

• A)wider than [-2.70159,-1.08654].
• B)narrower than [-2.70159,-1.08654].
• C)wider than [0.8321927,1.12697].
• D)narrower than [0.8321927,1.12697].

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Definitions:

Operant Conditioning

A learning process by which the strength of a behavior is modified by reinforcement or punishment.

Token Economies

is a behavior modification technique where tokens are given as a reward for desirable behaviors, which can be exchanged for privileges or items.

Schizophrenia

A long-term mental disorder involving a breakdown in the relation between thought, emotion, and behavior, leading to faulty perception, inappropriate actions and feelings, withdrawal from reality and personal relationships into fantasy and delusion, and a sense of mental fragmentation.

First-Generation

refers to the initial or earliest generation, often used to describe immigrants who were the first to arrive in a new country, or the first version/model of a product or technology.