A baby dolphin is born into the ocean, which is a fairly cold environment. Water has a high heat conductivity, so the thermal regulation of a newborn dolphin is quite important. It has been known for a long time that baby dolphins' blubber is different in composition and quantity from the blubber of adults. Does this make the babies better protected from the cold compared to adults? One measure of the effectiveness of blubber is its "conductance". This value as calculated on 5 newborn dolphins and 6 adults dolphins (Dunkin et al. 2005). The newborn dolphins had an average conductance of 10.44, with a standard error of the mean equal to 0.82. The adult dolphins' conductance averaged 8.44, with the standard error of this estimate equal to 1.6. All measures are given in watts per square meter per degree Celcius. Calculate the standard deviation of conductance for the adult dolphin group. Round your answer two decimal places. Researchers studying the number of electric fish species living in various parts of the Amazon basin were interested in whether the presence of tributaries affected the local number of electric fish species in the main rivers (Fernandes et al. 2004) They counted the number of electric fish species above and below the entrance point of a major tributary at 12 different river locations. Here is what they found: Upstream Downstream number of number of species species Tributary Içá 14 19 Jutaí 11 18 Japurá Coari Purus 10 16 Manacapuru Negro 23 24 Madeira 29 Trombetas 19 16 Tapajós 16 20 Xingu 25 21 Tocantins 10 12 What is the 95% confidence interval of the difference of means, ? Round your answers to two decimal places.
A baby dolphin is born into the ocean, which is a fairly cold environment. Water has a high heat conductivity, so the thermal regulation of a newborn dolphin is quite important. It has been known for a long time that baby dolphins' blubber is different in composition and quantity from the blubber of adults. Does this make the babies better protected from the cold compared to adults? One measure of the effectiveness of blubber is its "conductance". This value as calculated on 5 newborn dolphins and 6 adults dolphins (Dunkin et al. 2005). The newborn dolphins had an average conductance of 10.44, with a standard error of the mean equal to 0.82. The adult dolphins' conductance averaged 8.44, with the standard error of this estimate equal to 1.6. All measures are given in watts per square meter per degree Celcius. Calculate the standard deviation of conductance for the adult dolphin group. Round your answer two decimal places. Researchers studying the number of electric fish species living in various parts of the Amazon basin were interested in whether the presence of tributaries affected the local number of electric fish species in the main rivers (Fernandes et al. 2004) They counted the number of electric fish species above and below the entrance point of a major tributary at 12 different river locations. Here is what they found: Upstream Downstream number of number of species species Tributary Içá 14 19 Jutaí 11 18 Japurá Coari Purus 10 16 Manacapuru Negro 23 24 Madeira 29 Trombetas 19 16 Tapajós 16 20 Xingu 25 21 Tocantins 10 12 What is the 95% confidence interval of the difference of means, ? Round your answers to two decimal places.
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
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![A baby dolphin is born into the ocean, which is a fairly cold environment. Water has a high heat conductivity, so the thermal regulation of a newborn dolphin is quite
important. It has been known for a long time that baby dolphins' blubber is different in composition and quantity from the blubber of adults. Does this make the
babies better protected from the cold compared to adults? One measure of the effectiveness of blubber is its "conductance". This value as calculated on 5 newborn
dolphins and 6 adults dolphins (Dunkin et al. 2005).
The newborn dolphins had an average conductance of 10.44, with a standard error of the mean equal to 0.82. The adult dolphins' conductance averaged 8.44, with
the standard error of this estimate equal to 1.6. All measures are given in watts per square meter per degree Celcius.
Calculate the standard deviation of conductance for the adult dolphin group. Round your answer two decimal places.
Researchers studying the number of electric fish species living in various parts of the Amazon basin were interested in whether the presence of tributaries affected
the local number of electric fish species in the main rivers (Fernandes et al. 2004) They counted the number of electric fish species above and below the entrance
point of a major tributary at 12 different river locations.
Here is what they found:
Upstream
Downstream
number of
number of
species
species
Tributary
Içá
14
19
Jutaí
11
18
Japurá
Coari
Purus
10
16
Manacapuru
Negro
23
24
Madeira
29
Trombetas
19
16
Tapajós
16
20
Xingu
25
21
Tocantins
10
12
What is the 95% confidence interval of the difference of means,
? Round your answers to two decimal
places.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6f9ca2ce-c481-46d9-90b7-dd41b10c6161%2F1b7c7f63-d9f1-4a65-8a5d-059917a00126%2Fqwue88i.png&w=3840&q=75)
Transcribed Image Text:A baby dolphin is born into the ocean, which is a fairly cold environment. Water has a high heat conductivity, so the thermal regulation of a newborn dolphin is quite
important. It has been known for a long time that baby dolphins' blubber is different in composition and quantity from the blubber of adults. Does this make the
babies better protected from the cold compared to adults? One measure of the effectiveness of blubber is its "conductance". This value as calculated on 5 newborn
dolphins and 6 adults dolphins (Dunkin et al. 2005).
The newborn dolphins had an average conductance of 10.44, with a standard error of the mean equal to 0.82. The adult dolphins' conductance averaged 8.44, with
the standard error of this estimate equal to 1.6. All measures are given in watts per square meter per degree Celcius.
Calculate the standard deviation of conductance for the adult dolphin group. Round your answer two decimal places.
Researchers studying the number of electric fish species living in various parts of the Amazon basin were interested in whether the presence of tributaries affected
the local number of electric fish species in the main rivers (Fernandes et al. 2004) They counted the number of electric fish species above and below the entrance
point of a major tributary at 12 different river locations.
Here is what they found:
Upstream
Downstream
number of
number of
species
species
Tributary
Içá
14
19
Jutaí
11
18
Japurá
Coari
Purus
10
16
Manacapuru
Negro
23
24
Madeira
29
Trombetas
19
16
Tapajós
16
20
Xingu
25
21
Tocantins
10
12
What is the 95% confidence interval of the difference of means,
? Round your answers to two decimal
places.
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