12×5=60 3×20=60
60-60=0 So the answer is 0
6.70-10.00=3.30
So you get $3.30 as change
Answer:
either parentheses or brackets
Step-by-step explanation:
(x,y) means that the number is not included in interval notation
[x,y] means that the number is included in interval notation
Answer:
We conclude that the machine is under filling the bags.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 436.0 gram
Sample mean,
= 429.0 grams
Sample size, n = 40
Alpha, α = 0.05
Population standard deviation, σ = 23.0 grams
First, we design the null and the alternate hypothesis
We use one-tailed(left) z test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
We reject the null hypothesis and accept the alternate hypothesis. Thus, we conclude that the machine is under filling the bags.