Answered: A veterinarian collects data about…

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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A veterinarian collects data about puppies in her practice. She makes a scatterplot with their age in weeks on the horizontal axis and weight in ounces (oz) on the vertical axis and sees that the scatterplot is football shaped. The average age of the puppies is 5 weeks, with an SD of 2 weeks. The average weight is 20 oz, with an SD of 4 oz. The correlation is moderately strong, with r = 0.6. a) For each variable, circle all the terms that are applicable.   a. Age (weeks): quantitative qualitative discrete continuous b. Weight (oz): quantitative qualitative discrete continuous   b) A puppy is three weeks old. Using the regression line, the puppy is predicted to weigh ____________ oz, and this prediction is likely to be off by about ____________ oz. c) About what percent of all the puppies weigh less than 15 oz? ____________%    d) About what percent of three-week-old puppies weigh less than 15 oz?

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