A state employee wishes to see if there is a significant difference in the number of employees at the interchanges of three state toll roads. The data are shown below. At a = 0.01, can it be concluded that there is a significant difference in the average number of employees at each interchange? Pennsylvania Turnpike Greensburg Bypass/ Mon-Fayette Expressway Beaver Valley Expressway 10 14 1 12 32 1 19 10 11 1 11 1 11 X = 15.5 si = 81.9 X2 = 4.0 s = 25.6 X3 = 5.8 s = 29.0 %3! %3D

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 4AGP
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A state employee wishes to see if there is a significant difference in the number of employees at the interchanges of three state toll
roads. The data are shown below. At a = 0.01, can it be concluded that there is a significant difference in the average number of
employees at each interchange?
%3!
Pennsylvania
Turnpike
Greensburg Bypass/
Mon-Fayette Expressway
Beaver Valley
Expressway
10
1
14
12
32
1
19
10
11
1
11
11
X 15.5
s = 81.9
X2 = 4.0
品= 25.6
X, =5.8
s = 29.0
%3D
%3D
A- B
of
!!!
Transcribed Image Text:A state employee wishes to see if there is a significant difference in the number of employees at the interchanges of three state toll roads. The data are shown below. At a = 0.01, can it be concluded that there is a significant difference in the average number of employees at each interchange? %3! Pennsylvania Turnpike Greensburg Bypass/ Mon-Fayette Expressway Beaver Valley Expressway 10 1 14 12 32 1 19 10 11 1 11 11 X 15.5 s = 81.9 X2 = 4.0 品= 25.6 X, =5.8 s = 29.0 %3D %3D A- B of !!!
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