QUESTION 2
Emperor penguins are the most accomplished divers among birds, making routine dives of 5-12 minutes, with the longest recorded dive over 27 minutes.
These birds can also dive to depths of over 500 meters! Since air-breathing animals like penguins must hold their breath while submerged, the duration of any
given dive depends on how much oxygen is in the bird's body at the beginning of the dive, how quickly that oxygen gets used, and the lowest level of oxygen
the bird can tolerate. The rate of oxygen depletion is primarily determined by the penguin's heart rate. Consequently, studies of heart rates during dives can
help us understand how these animals regulate their oxygen consumption in order to make such impressive dives.
Using the Minitab printout below, answer the following questions:
a) What is the explanatory variable? dive heart rate
What is the response variable? depth
b) What is the least squares regression equation?
c) What is the coefficient of determination, 27
d) What is the correlation coefficient, r?
e) Are there any outliers?
If so, which observations are outliers?
(If there is more than one, list observations with a comma between them. Write N/A if there are none.)
Are there any influential observations?
If so, which observations are influential?
Interpret this result.
Interpret this result.
(If there is more than one, list observations with a comma between them. Write N/A if there are none.)
f) Suppose the depth the penguins dove to ranged from 5 to 225 meters.
What would be the predicted dive heart rate if a penguin dove to a depth of 250 meters?
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Save