Should the regression equation be used to predict the IQ for someone with a brain size...
Should the regression equation be used to predict the IQ for someone with a brain size of 140 thousand pixels? Explain.
Homework Answers
Yes regression equation can be used to predict the IQ for someone with a brain size of 140 thousand pixels.
As IQ level is an response variable and brain size is explanatory variable.
Using the data for two we can form linear equation and hence can use to predict values.
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Should the regression equation be used to predict the IQ for
someone with a brain size...
Use the data consisting of IQ score and brain volume (cm). Find the best predicted IQ score for s...
Use the data consisting of IQ score and brain volume (cm). Find the best predicted IQ score for someone with a brain volume of 999 cm. Use a significance level of 0.05. ll Click the icon to view the data set. Click here to view the critical values of the Pearson correlation coefficient,r. The regression equation is y = 121.91 + 0.01 637x. (Round the x-coefficient to five decimal places as needed. Round the constant to two decimal places as...
12. Use the data consisting of IQ score and brain volume (cm cubed). Find the best...
12. Use the data consisting of IQ score and brain volume (cm cubed). Find the best predicted IQ score for someone with a brain volume of 998 cm cubed. Use a significance level of 0.05. What is the regression equation? Ŷ=____+____x (Round the x-coefficient to five decimal places as needed. Round the constant to two decimal places as needed.) Given a brain volume of 998 cm cubed, the best predicted IQ score is _______ (Round to the nearest integer as...
Question 4 5 points Save Answer Researchers wondered whether the size of a person's brain was rel...
answer that i can understand well please
Question 4 5 points Save Answer Researchers wondered whether the size of a person's brain was related to the individual's mental capacity They selected a sample of right-handed Anglo introdu psychology students who had Scholastic Aptitude Test scores higher than 1350. The subjects were administered the Wechsler Adult Intelligence Scale-Revised to obtain their IQ scores. The MRI scans, performed at the same facility, consisted of 18 horizontal MR images. The comp of the...
3. [25 marks] Some female psychology students were investigating whether intelligence depends on brain size. They each t...
3. [25 marks] Some female psychology students were investigating
whether intelligence depends on brain size. They each took a
standard test that measured verbal IQ and also underwent an MRI
scan to measure their brain size.
The variables are:
IQ Result of the verbal IQ test. IQ is measured on an artificial
index scale, usually meant to have an average value of 100.
BrainV Brain volume measured in thousands of ‘pixels’. The size
of a pixel derives from the two-dimensional...
3. [25 marks] Some female psychology students were investigating whether intelligence depends on brain size. They each took a standard test that measured verbal IQ and also underwent an MRI scan to me...
3. [25 marks] Some female psychology students were investigating
whether intelligence depends on brain size. They each took a
standard test that measured verbal IQ and also underwent an MRI
scan to measure their brain size. The resulting data is below, file
named IQBrain.csv.
IQ
BrainV
132
816.932
132
951.545
90
928.799
136
991.305
90
854.258
129
833.868
120
856.472
100
878.897
71
865.363
132
852.244
112
808.02
129
790.619
86
831.772
90
798.612
83
793.549
126
866.662
126
857.782...
Some female psychology students were investigating whether intelligence depends on brain size. They each took a standard...
Some female psychology students were investigating whether intelligence depends on brain size. They each took a standard test that measured verbal IQ and also underwent an MRI scan to measure their brain size. The resulting data are in the file IQBrain.csv. The variables are IQ Result of the verbal IQ test. IQ is measured on an artificial index scale, usually meant to have an average value of 100. BrainV Brain volume measured in thousands of ‘pixels’. The size of a...
Which of these is the equation of the regression line? A. Mus.Apt. = -22.26 + .4925(IQ...
Which of these is the equation of the regression line?
A.
Mus.Apt. = -22.26 + .4925(IQ
Score)
B.
IQ Score = -22.26 +
.4925(Mus.Apt.)
C.
IQ Score = .4925 -
22.26(Mus.Apt.)
D.
Mus.Apt. = .4925 - 22.26(IQ
Score)
E.
IQ Score = Constant +
.4925x
3. [25 marks] Some female psychology students were investigating whether intelligence depends on brain size. They each t...
3. [25 marks] Some female psychology students were investigating
whether intelligence depends on brain size. They each took a
standard test that measured verbal IQ and also underwent an MRI
scan to measure their brain size. The resulting data is below, file
named IQBrain.csv.
IQ
BrainV
132
816.932
132
951.545
90
928.799
136
991.305
90
854.258
129
833.868
120
856.472
100
878.897
71
865.363
132
852.244
112
808.02
129
790.619
86
831.772
90
798.612
83
793.549
126
866.662
126
857.782...
8. Given the following regression equation: Shoe Size-.11(Height in inches) + 2. If a person's he...
8. Given the following regression equation: Shoe Size-.11(Height in inches) + 2. If a person's height increases by 2 inches, how much will the predicted value for his shoe size increase? 9. Yes/No: If a regression equation was constructed by sampling St. Johrn Fisher students. Can/Should we use the equation to predict the GPA for a student in Fisher's new Online Program (this program starts this semester)?
8. Given the following regression equation: Shoe Size-.11(Height in inches) + 2. If...
3. [25 marks] Some female psychology students were investigating whether intelligence depends on brain size. They each t...
3. [25 marks] Some female psychology students were investigating
whether intelligence depends on brain size. They each took a
standard test that measured verbal IQ and also underwent an MRI
scan to measure their brain size. The resulting data is below.
IQ
BrainV
132
816.932
132
951.545
90
928.799
136
991.305
90
854.258
129
833.868
120
856.472
100
878.897
71
865.363
132
852.244
112
808.02
129
790.619
86
831.772
90
798.612
83
793.549
126
866.662
126
857.782
90
834.344
129...
Use the data consisting of IQ score and brain volume (cm). Find the best predicted IQ score for someone with a brain volume of 999 cm. Use a significance level of 0.05. ll Click the icon to view the data set. Click here to view the critical values of the Pearson correlation coefficient,r. The regression equation is y = 121.91 + 0.01 637x. (Round the x-coefficient to five decimal places as needed. Round the constant to two decimal places as...
answer that i can understand well please
Question 4 5 points Save Answer Researchers wondered whether the size of a person's brain was related to the individual's mental capacity They selected a sample of right-handed Anglo introdu psychology students who had Scholastic Aptitude Test scores higher than 1350. The subjects were administered the Wechsler Adult Intelligence Scale-Revised to obtain their IQ scores. The MRI scans, performed at the same facility, consisted of 18 horizontal MR images. The comp of the...
3. [25 marks] Some female psychology students were investigating
whether intelligence depends on brain size. They each took a
standard test that measured verbal IQ and also underwent an MRI
scan to measure their brain size.
The variables are:
IQ Result of the verbal IQ test. IQ is measured on an artificial
index scale, usually meant to have an average value of 100.
BrainV Brain volume measured in thousands of ‘pixels’. The size
of a pixel derives from the two-dimensional...
3. [25 marks] Some female psychology students were investigating
whether intelligence depends on brain size. They each took a
standard test that measured verbal IQ and also underwent an MRI
scan to measure their brain size. The resulting data is below, file
named IQBrain.csv.
IQ
BrainV
132
816.932
132
951.545
90
928.799
136
991.305
90
854.258
129
833.868
120
856.472
100
878.897
71
865.363
132
852.244
112
808.02
129
790.619
86
831.772
90
798.612
83
793.549
126
866.662
126
857.782...
Which of these is the equation of the regression line?
A.
Mus.Apt. = -22.26 + .4925(IQ
Score)
B.
IQ Score = -22.26 +
.4925(Mus.Apt.)
C.
IQ Score = .4925 -
22.26(Mus.Apt.)
D.
Mus.Apt. = .4925 - 22.26(IQ
Score)
E.
IQ Score = Constant +
.4925x
3. [25 marks] Some female psychology students were investigating
whether intelligence depends on brain size. They each took a
standard test that measured verbal IQ and also underwent an MRI
scan to measure their brain size. The resulting data is below, file
named IQBrain.csv.
IQ
BrainV
132
816.932
132
951.545
90
928.799
136
991.305
90
854.258
129
833.868
120
856.472
100
878.897
71
865.363
132
852.244
112
808.02
129
790.619
86
831.772
90
798.612
83
793.549
126
866.662
126
857.782...
8. Given the following regression equation: Shoe Size-.11(Height in inches) + 2. If a person's height increases by 2 inches, how much will the predicted value for his shoe size increase? 9. Yes/No: If a regression equation was constructed by sampling St. Johrn Fisher students. Can/Should we use the equation to predict the GPA for a student in Fisher's new Online Program (this program starts this semester)?
8. Given the following regression equation: Shoe Size-.11(Height in inches) + 2. If...
3. [25 marks] Some female psychology students were investigating
whether intelligence depends on brain size. They each took a
standard test that measured verbal IQ and also underwent an MRI
scan to measure their brain size. The resulting data is below.
IQ
BrainV
132
816.932
132
951.545
90
928.799
136
991.305
90
854.258
129
833.868
120
856.472
100
878.897
71
865.363
132
852.244
112
808.02
129
790.619
86
831.772
90
798.612
83
793.549
126
866.662
126
857.782
90
834.344
129...
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