Ultra high performance concrete (UHPC) is a relatively new construction material that is characterized by strong adhesive properties with other materials. The article "Adhesive Power of Ultra High Performance Concrete from a Thermodynamic Point of View"+ described an investigation of the intermolecular forces for UHPC connected to various substrates. The following work of adhesion measurements (in mJ/m2) for UHPC specimens adhered to steel appeared in the article. 107.1 109.5 107.4 106.8 108.1 (a) Is it plausible that the given sample observations were selected from a normal distribution? It's plausible that the distribution could be normal. O It's not plausible that the distribution could be normal. (b) Calculate a two-sided 95% confidence interval for the true average work of adhesion for UHPC adhered to steel. (Round your answers to two decimal places.) 106.44 ✔,156 x ) m³/m² Does the interval suggest that 107 is a plausible value for the true average work of adhesion for UHPC adhered to steel? The interval suggests that 107 is a possible value for the true average. O The interval doesn't suggest that 107 is a possible value for the true average. Does the interval suggest that 112 is a plausible value for the true average work of adhesion for UHPC adhered to steel? O The interval suggests that 112 is a possible value for the true average. The interval doesn't suggest that 112 is a possible value for the true average.
Ultra high performance concrete (UHPC) is a relatively new construction material that is characterized by strong adhesive properties with other materials. The article "Adhesive Power of Ultra High Performance Concrete from a Thermodynamic Point of View"+ described an investigation of the intermolecular forces for UHPC connected to various substrates. The following work of adhesion measurements (in mJ/m2) for UHPC specimens adhered to steel appeared in the article. 107.1 109.5 107.4 106.8 108.1 (a) Is it plausible that the given sample observations were selected from a normal distribution? It's plausible that the distribution could be normal. O It's not plausible that the distribution could be normal. (b) Calculate a two-sided 95% confidence interval for the true average work of adhesion for UHPC adhered to steel. (Round your answers to two decimal places.) 106.44 ✔,156 x ) m³/m² Does the interval suggest that 107 is a plausible value for the true average work of adhesion for UHPC adhered to steel? The interval suggests that 107 is a possible value for the true average. O The interval doesn't suggest that 107 is a possible value for the true average. Does the interval suggest that 112 is a plausible value for the true average work of adhesion for UHPC adhered to steel? O The interval suggests that 112 is a possible value for the true average. The interval doesn't suggest that 112 is a possible value for the true average.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
Related questions
Question
Transcribed Image Text:Ultra high performance concrete (UHPC) is a relatively new construction material that is characterized by strong adhesive properties with other materials. The article "Adhesive Power of Ultra High
Performance Concrete from a Thermodynamic Point of View"t described an investigation of the intermolecular forces for UHPC connected to various substrates. The following work of adhesion
measurements (in mJ/m²) for UHPC specimens adhered to steel appeared in the article.
107.1 109.5 107.4 106.8 108.1
(a) Is it plausible that the given sample observations were selected from a normal distribution?
● It's plausible that the distribution could be normal.
It's not plausible that the distribution could be normal.
(b) Calculate a two-sided 95% confidence interval for the true average work of adhesion for UHPC adhered to steel. (Round your answers to two decimal places.)
x )mJ/m²
106.44
156
Does the interval suggest that 107 is a plausible value for the true average work of adhesion for UHPC adhered to steel?
● The interval suggests that 107 is a possible value for the true average.
The interval doesn't suggest that 107 is a possible value for the true average.
Does the interval suggest that 112 is a plausible value for the true average work of adhesion for UHPC adhered to steel?
The interval suggests that 112 is a possible value for the true average.
The interval doesn't suggest that 112 is a possible value for the true average.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 4 images
Recommended textbooks for you
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON