Which 95% confidence interval for the predicted glia-neuron ratio should be used to test if human brains fit the trend observed for other species?1. The 95% confidence interval for the mean glia-neuron ratio of all species, which have ln(brain mass) equal to that of humans.OR2. The 95% confidence interval for the glia-neuron ratio of a randomly drawn species with a ln(brain mass) equal to that of humans.Is the answer 1 or 2? Which 95% confidence interval for the predicted glia-neuron ratio should be used to test if human brainsfit the trend observed for other species?The 95% confidence interval for the mean glia-neuron ratio of all species, which have In(brain mass)equal to that of humans.The 95% confidence interval for the glia-neuron ratio of a randomly drawn species with a In(brainmass) equal to that of humans. AВspeciesIbrainMassInBrainMassgliaNeuronRatioHomo sapiens1373.37.221.65Pan troglodytes336.25.821.2Gorilla gorilla509.26.231.21Pongo pygmaeus342.75.840.98Hylobates muelleri101.84.621.22Papio anubis155.85.050.97Mandrillus sphinx159.25.071.02Macaca maura92.64.530.84Erythrocebus patasCercopithecus kandt102.34.631.0971.64.271.15Colobus angolensisTrachypithecus franAlouatta caraya74.44.311.291.24.511.1455.84.021.12Saimiri boliviensis24.13.180.51Aotus trivirgatus13.22.580.63Saguinus oedipus102.30.46Leontopithecus rosa12.22.50.6Pithecia pithecia303.40.64

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Which 95% confidence interval for the predicted glia-neuron ratio should be used to test if human brains fit the trend observed for other species?

1. The 95% confidence interval for the mean glia-neuron ratio of all species, which have ln(brain mass) equal to that of humans.

2. The 95% confidence interval for the glia-neuron ratio of a randomly drawn species with a ln(brain mass) equal to that of humans.

Is the answer 1 or 2?

Which 95% confidence interval for the predicted glia-neuron ratio should be used to test if human brains
fit the trend observed for other species?
The 95% confidence interval for the mean glia-neuron ratio of all species, which have In(brain mass)
equal to that of humans.
The 95% confidence interval for the glia-neuron ratio of a randomly drawn species with a In(brain
mass) equal to that of humans.

A
В
species
IbrainMass
InBrainMass
gliaNeuronRatio
Homo sapiens
1373.3
7.22
1.65
Pan troglodytes
336.2
5.82
1.2
Gorilla gorilla
509.2
6.23
1.21
Pongo pygmaeus
342.7
5.84
0.98
Hylobates muelleri
101.8
4.62
1.22
Papio anubis
155.8
5.05
0.97
Mandrillus sphinx
159.2
5.07
1.02
Macaca maura
92.6
4.53
0.84
Erythrocebus patas
Cercopithecus kandt
102.3
4.63
1.09
71.6
4.27
1.15
Colobus angolensis
Trachypithecus fran
Alouatta caraya
74.4
4.31
1.2
91.2
4.51
1.14
55.8
4.02
1.12
Saimiri boliviensis
24.1
3.18
0.51
Aotus trivirgatus
13.2
2.58
0.63
Saguinus oedipus
10
2.3
0.46
Leontopithecus rosa
12.2
2.5
0.6
Pithecia pithecia
30
3.4
0.64

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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