Exhibit 17

question 63

Multiple Choice

Exhibit 17.5.An over-the-counter drug manufacturer wants to examine the effectiveness of a new drug in curing an illness most commonly in older patients.Thirteen patients are given the new drug and 13 patients are given the old drug.To avoid bias in the experiment,they are not told which drug is given to them.To check how the effectiveness depends on the age of patients,the following data has been collected. Assuming the variables: Effectiveness = the response variable measured on a scale from 0 to 100,
Age = the age of a patient (in years) ,
Drug = a binary variable with 1 for the new drug,and 0 for the old drug,the regression model,
Effectiveness = β₀ + β₁Age + β₂Drug + β₃Age × Drug,is considered,and the following Excel results are available: Refer to Exhibit 17.5.What is the estimated regression model?

• A) = 0.34Age - 40.86Drug + 0.70Age × Drug
• B) = 3.15 + 0.07Age - 4.08Drug + 0.09Age × Drug
• C) = 14.94 + 5.06Age - 10.02Drug + 7.94Age × Drug

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Definitions:

Understanding of Intelligence

The comprehension of the nature, measurement, and implications of cognitive abilities and processes.

Measured

Measured refers to something that has been quantitatively assessed or determined using specific instruments or criteria.

Army Alpha

A group-administered intelligence test developed for the U.S. Army during World War I to assess recruit literacy and mental ability.

Army Beta

A nonverbal intelligence test developed for illiterate, non-English speaking, or verbally handicapped recruits in the U.S. Army.