I need help w this question right here
1 answer:
You might be interested in
Answer: 48
Step-by-step explanation:
As per given , we have
Confidence level :
Significance level :
Using z-value table , the critical z-value =
Margin of error : E =0.57 gallon
Prior standard deviation :
Required minimum sample would be :
Hence, the required minimum sample size = 48
Here my answer. :))))))))))
Answer:
Answer:
The solution in the attached figure
Step-by-step explanation:
we have
---> inequality A
The solution of the inequality A is the shaded area below the solid line
The slope of the solid line is negative
The y-intercept of the solid line is (0,-3)
The x-intercept of the solid line is (-3,0)
----> inequality B
The solution of the inequality B is the shaded area below the dashed line
The slope of the dashed line is positive
The y-intercept of the dashed line is (0,0)
The x-intercept of the dashed line is (0,0)
so
Using a graphing tool
The solution of the system of inequalities is the shaded area below the solid line and below the dashed line
see the attached figure
