Answered: The body weight of a healthy…

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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The body weight of a healthy 3-month-old colt should be about ? = 76 kg.

(a) If you want to set up a statistical test to challenge the claim that ? = 76 kg, what would you use for the null hypothesis

H₀?

? > 76 kg

? < 76 kg

? = 76 kg

? ≠ 76 kg

(b) In Nevada, there are many herds of wild horses. Suppose you want to test the claim that the average weight of a wild Nevada colt (3 months old) is less than 76 kg. What would you use for the alternate hypothesis

H₁?

? > 76 kg

? < 76 kg

? = 76 kg

? ≠ 76 kg

(c) Suppose you want to test the claim that the average weight of such a wild colt is greater than 76 kg. What would you use for the alternate hypothesis?

? > 76 kg

? < 76 kg

? = 76 kg

? ≠ 76 kg

(d) Suppose you want to test the claim that the average weight of such a wild colt is different from 76 kg. What would you use for the alternate hypothesis?

? > 76 kg

? < 76 kg

? = 76 kg

? ≠ 76 kg

(e) For each of the tests in parts (b), (c), and (d), respectively, would the area corresponding to the P-value be on the left, on the right, or on both sides of the mean?

left; both; right

both; left; right

right; left; both

left; right; both

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