+ a. Enter the null hypothesis for this test. Ho Select an answer ? b. Enter the alternative hypothesis for this test. H₁: Select an answer ? 86 c. Is the original claim located in the null or alternative hypothesis? Select an answer
+ a. Enter the null hypothesis for this test. Ho Select an answer ? b. Enter the alternative hypothesis for this test. H₁: Select an answer ? 86 c. Is the original claim located in the null or alternative hypothesis? Select an answer
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Answer all please
![3
A housing development can only build on a certain plot of land if can show that the average level of arsenic in
the groundwater is less than 84 parts-per-million (ppm). Soil samples are drawn from the site and tested in a lab.
The results of the samples (in ppm) are given below. Is there enough evidence to say that the land is ready for
development using a level of significance of 10%? You may assume that the level of ground arsenic is normally
distributed in the area.
Sample Reults: 70 73 57 43 85 49 81 86
a. Enter the null hypothesis for this test.
Ho Select an answer
?
b. Enter the alternative hypothesis for this test.
H₁: Select an answer ?
c. Is the original claim located in the null or alternative hypothesis?
Select an answer
d. What is the test statistic for the given statistics?
e. What is the p-value for this test?
f. What is the decision based on the given statistics?
Select an answer
g. What is the correct interpretation of this decision?
Using a % level of significance, there Select an answer sufficient evidence to Select an answer
the claim that the average level of arsenic in the groundwater is less than 84 parts-per-million (ppm).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F362f6a54-f2ac-42e5-b1a0-3165b253b278%2F2347d116-9e29-4e8e-b485-35ba32c7fbce%2Fqe1udda_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3
A housing development can only build on a certain plot of land if can show that the average level of arsenic in
the groundwater is less than 84 parts-per-million (ppm). Soil samples are drawn from the site and tested in a lab.
The results of the samples (in ppm) are given below. Is there enough evidence to say that the land is ready for
development using a level of significance of 10%? You may assume that the level of ground arsenic is normally
distributed in the area.
Sample Reults: 70 73 57 43 85 49 81 86
a. Enter the null hypothesis for this test.
Ho Select an answer
?
b. Enter the alternative hypothesis for this test.
H₁: Select an answer ?
c. Is the original claim located in the null or alternative hypothesis?
Select an answer
d. What is the test statistic for the given statistics?
e. What is the p-value for this test?
f. What is the decision based on the given statistics?
Select an answer
g. What is the correct interpretation of this decision?
Using a % level of significance, there Select an answer sufficient evidence to Select an answer
the claim that the average level of arsenic in the groundwater is less than 84 parts-per-million (ppm).
![the groundwater is less than 84 parts-per-million (ppm). Soil samples are drawn from the site and tested in a lab.
The results of the samples (in ppm) are given below. Is there enough evidence to say that the land is ready for
development using a level of significance of 10%? You may assume that the level of ground arsenic is normally
distributed in the area.
Sample Reults: 70 73 57 43 85
a. Enter the null hypothesis for this test.
Ho Select an answer ?
b. Enter the alternative hypothesis for this test.
H✔ Select an answer
?
c. Is t
Se
O
μ
X
p
49 81 86
ated in the null or alternative hypothesis?
Р
X
d. What is the test statistic for the given statistics?
e. What is the p-value for this test?
f. What is the decision based on the given statistics?
Select an answer
Using a
g. What is the correct interpretation of this decision?
% level of significance, there Select an answer
sufficient evidence to
Select an answer
:11:. (mm)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F362f6a54-f2ac-42e5-b1a0-3165b253b278%2F2347d116-9e29-4e8e-b485-35ba32c7fbce%2Fz7nned_processed.jpeg&w=3840&q=75)
Transcribed Image Text:the groundwater is less than 84 parts-per-million (ppm). Soil samples are drawn from the site and tested in a lab.
The results of the samples (in ppm) are given below. Is there enough evidence to say that the land is ready for
development using a level of significance of 10%? You may assume that the level of ground arsenic is normally
distributed in the area.
Sample Reults: 70 73 57 43 85
a. Enter the null hypothesis for this test.
Ho Select an answer ?
b. Enter the alternative hypothesis for this test.
H✔ Select an answer
?
c. Is t
Se
O
μ
X
p
49 81 86
ated in the null or alternative hypothesis?
Р
X
d. What is the test statistic for the given statistics?
e. What is the p-value for this test?
f. What is the decision based on the given statistics?
Select an answer
Using a
g. What is the correct interpretation of this decision?
% level of significance, there Select an answer
sufficient evidence to
Select an answer
:11:. (mm)
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