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Name: An ecologist hypothesizes that birds with longer wing spans use wider
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Description: An ecologist hypothesizes that birds with longer wing spans use wider tree branches. The ecologist captured male birds, measured their wing span and other characteristics in millimeters, and then marked and released them. During the ensuing winter,

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter37: Customary And Metric Gage Blocks

Section: Chapter Questions

Problem 5A

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An ecologist hypothesizes that birds with longer wing spans use wider tree branches. The ecologist captured male birds, measured their wing span and other characteristics in millimeters, and then marked and released them. During the ensuing winter, the ecologist repeatedly observed the marked birds as they foraged for food on tree branches. He noted the branch diameter on each occasion, and calculated the average branch diameter for each bird in centimeters. The measurement data are below. What can the ecologist conclude with an α of 0.05

wing span	branch diameter
79.3 80.1 80.7 81.5 79.5 80.7 81.1 80.5 80.7	1.56 1.53 1.39 1.04 1.39 1.02 1.21 1.31 1.21

A) What is the appropriate statistic? Then Compute the statistic

B) Compute the appropriate test statistic(s) for H₁: ρ > 0

critical value =

test statistic=

C) Effect Size

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