Answered: Dogs and fat, second helping In…

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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Dogs and fat, second helping In Exercise 3, we saw
a 90% confidence interval of (-6.5, -1.4) grams for
mMeat - mBeef

, the difference in mean fat content for meat
vs. all-beef hot dogs. Explain why you think each of the
following statements is true or false:
a) If I eat a meat hot dog instead of a beef dog, there’s a
90% chance I’ll consume less fat.

b) 90% of meat hot dogs have between 1.4 and 6.5 grams
less fat than a beef hot dog.
c) I’m 90% confident that meat hot dogs average
1.4–6.5 grams less fat than the beef hot dogs.
d) If I were to get more samples of both kinds of hot

dogs, 90% of the time the meat hot dogs would aver-
age 1.4–6.5 grams less fat than the beef hot dogs.

e) If I tested many samples, I’d expect about 90% of the

resulting confidence intervals to include the true dif-
ference in mean fat content between the two kinds of

hot dogs.

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