QUESTION 19A sample of 28 dugongs (sea cows) is collected and data on the age (in years) and length (in yards) of these dugongs is recorded. A simple linear regression model is fit to the data, treating age as the predictor variable. Theintercept is estimated to be 2.0256 and the slope is estimated to be 0.0289.If the predicted value of a dugong's length at age 15 is 2.4591, but there is a case in the sample of a dugong of this age with a length of 2.7591, what is the residual for this case?OA. -0.3OB.-0.03OC. 0.03O D.0.3

The random variable y is the length The random variable x is the age The sample size is 28. The…

Answered: QUESTION 19 A sample of 28 dugongs (sea…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Stoaches are fictional creatures that nest in truffula forests. A researcher wants to know whether there is a relationship between a stoach’s wingspan (?W, the predictor) and its nest height (?H, the response). A sample of 85 stoaches is observed, and for each, the wing-span (in cm) and the nest height (in m) are recorded. The observed data meet the assumptions for a linear regression, so the researcher fits the regression model and obtains a regression equation ℎ̂=−4.273+0.834?,h^=−4.273+0.834w, with standard error for the coefficient of ?w equal to 0.242. Determine the ?p-value from a test for a statistically significant linear dependence of nest height on wing-span. (Give your answer to 4 decimal places.
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