A study of king penguins looked for a relationship between how deep the penguins

Question

A study of king penguins looked for a relationship between how deep the penguins dive to seek food and how long they stay underwater. For all but the shallowest dives, there is a linear relationship that is different for different penguins. The study report gives a scatterplot for one penguin titled " The relation of dive duration (DD) to depth (D)." Duration DD is measured in minutes and depth D is in meters. The report then says. " The regression equation for this bird is. DD = 2.42 + 0.0137 D. What is the slope of the regression line?. According to the regression line, how long does a typical dive to a depth of 250 meters last?

Explanation / Answer

a) Slope = 0.0137

b)

Y = 2.42 + 0.0137*250

Y = 5.845

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