Using R Studio: Include R Code: The following data is from IQ
tests for pairs of...
Using R Studio: Include R Code: The following data is from IQ
tests for pairs of twins that were separated at birth. One twin was
raised by the biological parents, the other by adoptive
parents.
Foster: 80, 88, 75, 113, 95, 82, 97,
94, 132, 108
Biological: 90,
91, 79, 97, 97, 82, 87, 94, 131, 115
Find a 90% confidence interval for the
differences of mean. What do you assume about the data? In
particular, are the two samples independent?
n=40 samples of IQ
85, 94, 97, 86, 86, 107, 91, 99, 115, 50, 93, 98,...
n=40 samples of IQ
85, 94, 97, 86, 86, 107, 91, 99, 115, 50, 93, 98, 100, 94, 73,
76, 72, 76, 95, 89, 96, 108, 74, 72, 90, 100, 91, 98, 91, 85, 97,
91, 78, 82, 93, 89, 94, 88, 83, 76
1) Construct a histogram of the IQ data from your sample.
Describe the shape of the histogram and write a sentence or two
detailing what the histogram seems to tell you.
Given Data:
(1)= low lead level (2)= medium lead level, (3)= high lead
level
IQ: 85...
Given Data:
(1)= low lead level (2)= medium lead level, (3)= high lead
level
IQ: 85 (1), 94 (1), 97 (1), 86 (1), 86 (1), 107 (1), 91 (1), 99
(1), 115 (1), 50 (1), 93 (1), 98 (1), 100 (1), 94 (1), 73 (1), 76
(1), 72 (1), 76 (1), 95 (1), 89 (1), 96 (1), 108 (1), 74 (1), 72
(2), 90 (2), 100 (2), 91 (2), 98 (2), 91 (2), 85 (2), 97 (2), 91
(2), 78...
Given Data:
(1)= low lead level (2)= medium lead level, (3)= high lead
level
IQ: 85...
Given Data:
(1)= low lead level (2)= medium lead level, (3)= high lead
level
IQ: 85 (1), 94 (1), 97 (1), 86 (1), 86 (1), 107 (1), 91 (1), 99
(1), 115 (1), 50 (1), 93 (1), 98 (1), 100 (1), 94 (1), 73 (1), 76
(1), 72 (1), 76 (1), 95 (1), 89 (1), 96 (1), 108 (1), 74 (1), 72
(2), 90 (2), 100 (2), 91 (2), 98 (2), 91 (2), 85 (2), 97 (2), 91
(2), 78...
Given Data: (1)= low lead level (2)= medium lead level, (3)=
high lead level
IQ: 85...
Given Data: (1)= low lead level (2)= medium lead level, (3)=
high lead level
IQ: 85 (1), 94 (1), 97 (1), 86 (1), 86 (1), 107 (1), 91 (1), 99
(1), 115 (1), 50 (1), 93 (1), 98 (1), 100 (1), 94 (1), 73 (1), 76
(1), 72 (1), 76 (1), 95 (1), 89 (1), 96 (1), 108 (1), 74 (1), 72
(2), 90 (2), 100 (2), 91 (2), 98 (2), 91 (2), 85 (2), 97 (2), 91
(2), 78...
Sibling IQ Scores (Raw Data, Software
Required):
There have been numerous studies involving the
correlation and...
Sibling IQ Scores (Raw Data, Software
Required):
There have been numerous studies involving the
correlation and differences in IQ's among siblings. Here we
consider a small example of such a study. We will test the claim
that, on average, older siblings have a higher IQ than their
younger sibling. The results are depicted for a sample of 10
siblings in the table below. Test the claim at the 0.05
significance level. You may assume the sample of differences comes
from...
Sibling IQ Scores (Raw Data, Software
Required):
There have been numerous studies involving the correlation and...
Sibling IQ Scores (Raw Data, Software
Required):
There have been numerous studies involving the correlation and
differences in IQ's among siblings. Here we consider a small
example of such a study. We will test the claim that, on average,
older siblings have a higher IQ than their younger sibling. The
results are depicted for a sample of 10 siblings in the table
below. Test the claim at the 0.05 significance level. You may
assume the sample of differences comes from...