A biologist collected data on a sample of 20 porcupines. She wants to be able to predict
Question:
A biologist collected data on a sample of 20 porcupines. She wants to be able to predict the body mass of a porcupine (in grams) based on the length of the porcupine (in cm). Her least squares regression equation is , where M is the mass.
Interpret the slope of the least squares regression line, in the context of the situation.
If it would make sense, provide a clear interpretation of the intercept of the regression line, in context. Otherwise, explain why the interpretation does not make sense.
Predict the body mass of a porcupine that is 51 cm long. Report your answer using one decimal place.
One of the porcupines in the dataset had a body length of 51 cm and a body mass of 5,281 g. Calculate the residual for this porcupine. Use one decimal place in your calculation.
Business Research Methods
ISBN: 978-0073521503
12th edition
Authors: Donald R. Cooper, Pamela S. Schindler