Problem 1 To compare the braking distance for two types of tires, a safety engineer conducts 50 braking tests for each of the two types of tires. The results of the tests are shown in the table below. Assume o, and o, are known. 2 Type C n₁ = = 50 x₁ = 55 feet 0₁ = 5.3 feet Type D n₂ = 50 X₂=51 feet 0₂ = 4.9 feet At a = 10%, can the engineer support the claim that the mean braking distance for Type C is greater than the mean breaking distance for type D?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.6: Additional Trigonometric Graphs
Problem 59E
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Problem 1
To compare the braking distance for two types of tires, a safety engineer conducts 50
braking tests for each of the two types of tires. The results of the tests are shown in the
table below. Assume σ₁ and σ,₂ are known.
2
Type C
n₁ = 50
x₁ = 55 feet
0₁ = 5.3 feet
Type D
n₂ = 50
x₂ = 51 feet
0₂ = 4.9 feet
At a = 10%, can the engineer support the claim that the mean braking distance for Type
C is greater than the mean breaking distance for type D?
Transcribed Image Text:Problem 1 To compare the braking distance for two types of tires, a safety engineer conducts 50 braking tests for each of the two types of tires. The results of the tests are shown in the table below. Assume σ₁ and σ,₂ are known. 2 Type C n₁ = 50 x₁ = 55 feet 0₁ = 5.3 feet Type D n₂ = 50 x₂ = 51 feet 0₂ = 4.9 feet At a = 10%, can the engineer support the claim that the mean braking distance for Type C is greater than the mean breaking distance for type D?
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