Answered: In this problem, assume that the…

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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In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer.

Is fishing better from a boat or from the shore? Pyramid Lake is located on the Paiute Indian Reservation in Nevada. Presidents, movie stars, and people who just want to catch fish go to Pyramid Lake for really large cutthroat trout. Let row Brepresent hours per fish caught fishing from the shore, and let row A represent hours per fish caught using a boat. The following data are paired by month from October through April.

	Oct	Nov	Dec	Jan	Feb	March	April
B: Shore	1.7	1.8	2.0	3.2	3.9	3.6	3.3
A: Boat	1.6	1.4	1.7	2.2	3.3	3.0	3.8

a) What is the value of the sample test statistic? (Round your answer to three decimal places.)

b) Find (or estimate) the P-value.

a) P-value > 0.500

b) 0.250 < P-value < 0.500
c) 0.100 < P-value < 0.250

d) 0.050 < P-value < 0.100

e) 0.010 < P-value < 0.050

f) P-value < 0.010

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