Question

A multiple regression equation of quality of life scale (0-100, 100 is best) associated with Age (year), Income (unit US $), CD4 count from 695 Africa HIV infected women is

The quality of life scale = 32.121 + 0.060 * Income + 0.017 * CD4 count - 0.045 * Age.

Based on this regression equation, please answer following questions 15 to 29.
____________________________________________________________________

Given an Africa HIV infected woman with an income $200, CD4 250 and age 40, the predicted quality of life scale is

Group of answer choices

32.121

46.571

34.571

Can not be determined

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Question 163.44 pts

Given an Africa HIV infected woman with an income $100 and CD4 200, the predicted quality of life scale is

Group of answer choices

32.121

46.571

34.571

Can not be determined

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Question 173.44 pts

In this multiple regression equation, the intercept is

Group of answer choices

32.121

46.571

34.571

Can not be determined

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Question 183.44 pts

Given an Africa HIV infected woman with no income, CD4 250 and age 40, the predicted quality of life scale is

Group of answer choices

32.121

46.571

34.571

Can not be determined

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Question 193.44 pts

In this multiple regression equation, the quality of life scale is

Group of answer choices

Independent variable

Dependent variable

Neither independent variable, nor dependent variable

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Question 203.44 pts

In this multiple regression equation, the income is

Group of answer choices

Independent variable

Dependent variable

Neither independent variable, nor dependent variable

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Question 213.44 pts

In this multiple regression equation, the CD4 count is

Group of answer choices

Independent variable

Dependent variable

Neither independent variable, nor dependent variable

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Question 223.44 pts

In this multiple regression equation, the age is

Group of answer choices

Independent variable

Dependent variable

Neither independent variable, nor dependent variable

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Question 233.44 pts

The difference of predicted quality of life scale between the woman with an income $200, CD4 250 and age 40 and the woman with no income, CD4 250 and age 40 is

Group of answer choices

0.450

12.000

1.7

6.000

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Question 243.44 pts

The difference of predicted quality of life scale between the woman with an income $200, CD4 250 and age 40 and the woman with an income $100, CD4 250 and age 40 is

Group of answer choices

0.450

12.000

1.7

6.000

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Question 253.44 pts

The difference of predicted quality of life scale between two women with same income and same CD4 count, but one age 30 and the other 40, is

Group of answer choices

0.450

12.000

1.7

6.000

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Question 263.44 pts

The difference of predicted quality of life scale between two women with same income and same age, but one CD4 count 200 and the other 100, is

Group of answer choices

0.450

12.000

1.7

6.000

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Question 273.44 pts

As income increases one dollar, the predicted quality of life scale increases

Group of answer choices

32.121

0.060

0.017

-0.045

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Question 283.44 pts

As CD4 count increases one count, the predicted quality of life scale increases

Group of answer choices

32.121

0.060

0.017

-0.045

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Question 293.44 pts

As age increases one year, the predicted quality of life scale increases

Group of answer choices

32.121

0.060

0.017

-0.045

Answer 1

Answer 153

Given income $200, CD4 250 and age 40, the predicted quality of life scale is:

The quality of life scale = 32.121 + 0.060*200 + 0.017*250 - 0.045*40

The quality of life scale = 46.571

Answer 163

The predicted quality of life scale "Cannot be Determined" as age is not given

Answer 173

The regression equation is given as:

The quality of life scale = 32.121 + 0.060 * Income + 0.017 * CD4 count - 0.045 * Age

In this the constant term is intercept

So, In this multiple regression equation, the intercept is 32.121

Answer 183

Given no income, CD4 250 and age 40, the predicted quality of life scale is:

The quality of life scale = 32.121 + 0.060*0 + 0.017*250 - 0.045*40

The quality of life scale = 34.571

Answer 193

In the regression equation, the value that is predicted is a dependent variable.

So, in this multiple regression equation, the quality of life scale is a dependent variable

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