The data on cube compressive strength (mpa) of concrete specimens are as follows:
112.3, 97....
![subject](/tpl/images/cats/mat.png)
Mathematics, 10.12.2019 22:31 al351330
The data on cube compressive strength (mpa) of concrete specimens are as follows:
112.3, 97.0, 92.7, 86.0, 102.0, 99.2, 95.8, 103.5, 89.0, 86.7. assume the compressive strength for this type of concrete is normally distributed. suppose the concrete will be used for a particular application unless there is strong evidence that true average strength is less than 100 mpa.
1. should the concrete be used?
2. carry out a test of appropriate hypotheses using the p-value method
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:50
Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.
Answers: 1
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:30
Select all expressions that are equivalent to 2(3x + 7y). question 1 options: 6x + 14y 6x + 7y 1(6x + 14y)
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:30
When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 17.02.2021 02:20
![question](/tpl/images/cats/geografiya.png)
Geography, 17.02.2021 02:20
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.02.2021 02:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.02.2021 02:20
![question](/tpl/images/cats/himiya.png)
Chemistry, 17.02.2021 02:20
![question](/tpl/images/cats/en.png)
English, 17.02.2021 02:20
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 17.02.2021 02:20
![question](/tpl/images/cats/mat.png)
Mathematics, 17.02.2021 02:20
![question](/tpl/images/cats/mat.png)
Mathematics, 17.02.2021 02:20
![question](/tpl/images/cats/mat.png)
Mathematics, 17.02.2021 02:20
![question](/tpl/images/cats/mat.png)
Mathematics, 17.02.2021 02:20
![question](/tpl/images/cats/mat.png)
Mathematics, 17.02.2021 02:20