An ecologist hypothesizes a relationship between wing span of birds and the width of tree branches they use. 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 a of 0.10? wing span branch diameter 79.3 80.1 80.7 81.5 79.5 80.7 81.1 80.5 80.7 1.02 1.04 1.21 1.15 1.21 1.56 1.39 1.31 1.39 a) What is the appropriate statistic? Select- Compute the statistic selected in a): b) Obtain/compute the appropriate values to make a decision about Ho- Critical Value - ; Test Statistic= Decision: -Select- c) Compute the corresponding effect size(s) and indicate magnitude(s). If not appropriate, input and/or select "na" below. Effect Size= ; Magnitude: -Select- d) Make an interpretation based on the results. There was a significant positive relationship between the wing span of the birds and branch diameter. O There was a significant negative relationship between the wing span of the birds and branch diameter. There was no significant relationship between the wing span of the birds and branch diameter.
An ecologist hypothesizes a relationship between wing span of birds and the width of tree branches they use. 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 a of 0.10? wing span branch diameter 79.3 80.1 80.7 81.5 79.5 80.7 81.1 80.5 80.7 1.02 1.04 1.21 1.15 1.21 1.56 1.39 1.31 1.39 a) What is the appropriate statistic? Select- Compute the statistic selected in a): b) Obtain/compute the appropriate values to make a decision about Ho- Critical Value - ; Test Statistic= Decision: -Select- c) Compute the corresponding effect size(s) and indicate magnitude(s). If not appropriate, input and/or select "na" below. Effect Size= ; Magnitude: -Select- d) Make an interpretation based on the results. There was a significant positive relationship between the wing span of the birds and branch diameter. O There was a significant negative relationship between the wing span of the birds and branch diameter. There was no significant relationship between the wing span of the birds and branch diameter.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 3CYU
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Transcribed Image Text:An ecologist hypothesizes a relationship between wing span of birds and the width of tree branches they use. 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 a of 0.10?
wing span
branch diameter
79.3
80.1
80.7
81.5
79.5
80.7
81.1
80.5
80.7
1.02
1.04
1.21
1.15
1.21
1.56
1.39
1.31
1.39
a) What is the appropriate statistic?
Select-
Compute the statistic selected in a):
b) Obtain/compute the appropriate values to make a decision about Ho-
Critical Value -
; Test Statistic=
Decision: -Select-
c) Compute the corresponding effect size(s) and indicate magnitude(s).
If not appropriate, input and/or select "na" below.
Effect Size=
; Magnitude: -Select-
d) Make an interpretation based on the results.
There was a significant positive relationship between the wing span of the birds and branch diameter.
O There was a significant negative relationship between the wing span of the birds and branch diameter.
There was no significant relationship between the wing span of the birds and branch diameter.
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