Does the data provide compelling evidence for condluding that true average strength for the 1078 grade exceeds that for the 1064 grade by more than 10| kg/mm2? Test the appropriate hypotheses using the P-value approach. Estimate the difference between true average strengths for the two grades in a way that provides information about precision and reliability. How does this compare to the result using the hypothesis test?
Does the data provide compelling evidence for condluding that true average strength for the 1078 grade exceeds that for the 1064 grade by more than 10| kg/mm2? Test the appropriate hypotheses using the P-value approach. Estimate the difference between true average strengths for the two grades in a way that provides information about precision and reliability. How does this compare to the result using the hypothesis test?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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Question
![Tensile strength tests were carried out on two different grades of wire rod, resulting
in the following data:
Grade
Sample size
Sample mean
Sample
(kg/mm?)
Stdev
AISI 1064
129
105.2
1.3
AISI 1078
129
121.4
2.0
Does the data provide compelling evidence for concluding that true average
strength for the 1078 grade exceeds that for the 1064 grade by more than 10
kg/mm2? Test the appropriate hypotheses using the P-value approach.
Estimate the difference between true average strengths for thetwo grades in a
way that provides information about precision and reliability. How does this
compare to the result using the hypothesis test?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe817bdb9-d9e7-48da-bce3-40638978c647%2Ff937409a-eab1-4b1a-81a8-026331db5013%2Fxh6wg5_processed.png&w=3840&q=75)
Transcribed Image Text:Tensile strength tests were carried out on two different grades of wire rod, resulting
in the following data:
Grade
Sample size
Sample mean
Sample
(kg/mm?)
Stdev
AISI 1064
129
105.2
1.3
AISI 1078
129
121.4
2.0
Does the data provide compelling evidence for concluding that true average
strength for the 1078 grade exceeds that for the 1064 grade by more than 10
kg/mm2? Test the appropriate hypotheses using the P-value approach.
Estimate the difference between true average strengths for thetwo grades in a
way that provides information about precision and reliability. How does this
compare to the result using the hypothesis test?
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