Answer:
22.627
Step-by-step explanation:
Answer: There is sufficient evidence to support the claim that the bags are under-filled.
Step-by-step explanation:
Since we have given that
Sample mean = 411
Standard deviation = 20
n = 9
So, the test statistic value is given by
At 0.025 level of significance,
critical value z = -2.306
since -2.306<-1.05
so, we will reject the null hypothesis.
Yes, there is sufficient evidence to support the claim that the bags are underfilled.
The midline would be horizontal.
The top of the line is at 12, the bottom is at 6
The midline would be at 9
The answer is b.9
Answer: It is A=-1<x<-6 is the domain