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.
Answer: The solution set is
Step-by-step explanation:
The product of 7 and x is .
3 more than the product of 7 and x is .
We were given that, the expression is less than 26.
This implies that,
.
We group like terms to obtain,
we now divide through by 7 to obtain,
We finally write this as a mixed number to obtain,
Answer:
3.42 is a repeating irrational because no matter what repeating decimal it is, it will always be irrational
Step-by-step explanation:
Hope this helps