10. It is hypothesized that there are fluctuations in norepinephrine (NE) levels which accompany fluctuations in affect with bipolar affective disorder (manic-depressive illness). Thus, during depressive states, NE levels drop; during manic states, NE levels increase. To test this relationship, researchers measured the level of NE by measuring the metabolite 3-methoxy-4- hydroxyphenylglycol (MHPG in micro gram per 24 hour) in the patient's urine experiencing varying levels of mania/depression. Increased levels of MHPG are correlated with increased metabolism (thus higher levels) of central nervous system NE. Levels of mania/depression were also recorded on a scale with a low score indicating increased mania and a high score increased depression. The data is provided below. MHPG Affect 980 22 1209 26 1403 8 1950 10 1814 5 1280 19 1073 26 1066 12 880 23 776 28 Compute the correlation coefficient.

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10. It is hypothesized that there are fluctuations in
norepinephrine (NE) levels which accompany fluctuations
in affect with bipolar affective disorder (manic-depressive
illness). Thus, during depressive states, NE levels drop;
during manic states, NE levels increase. To test this
relationship, researchers measured the level of NE by
measuring the metabolite 3-methoxy-4-
hydroxyphenylglycol (MHPG in micro gram per 24 hour)
in the patient's urine experiencing varying levels of
mania/depression. Increased levels of MHPG are correlated
with increased metabolism (thus higher levels) of central
nervous system NE. Levels of mania/depression were also
recorded on a scale with a low score indicating increased
mania and a high score increased depression. The data is
provided below.
MHPG Affect
980 22
1209 26
1403 8
1950 10
1814 5
1280 19
1073 26
1066 12
880 23
776 28
Compute the correlation coefficient.
Transcribed Image Text:10. It is hypothesized that there are fluctuations in norepinephrine (NE) levels which accompany fluctuations in affect with bipolar affective disorder (manic-depressive illness). Thus, during depressive states, NE levels drop; during manic states, NE levels increase. To test this relationship, researchers measured the level of NE by measuring the metabolite 3-methoxy-4- hydroxyphenylglycol (MHPG in micro gram per 24 hour) in the patient's urine experiencing varying levels of mania/depression. Increased levels of MHPG are correlated with increased metabolism (thus higher levels) of central nervous system NE. Levels of mania/depression were also recorded on a scale with a low score indicating increased mania and a high score increased depression. The data is provided below. MHPG Affect 980 22 1209 26 1403 8 1950 10 1814 5 1280 19 1073 26 1066 12 880 23 776 28 Compute the correlation coefficient.
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