All you need to do is multiply 84 by 4.
The number of gallons by the number of quarts <em>in a gallon. </em>
80*4= 320
4*4=16
320+16= 336
There are 336 quarts of water supplied an hour.
I hope this helps!
~kaikers
Answer:
3x + 6
Step-by-step explanation:
3(x + 2)
= 3(x) + 3(2)
= 3x + 6
Answer:
Step-by-step explanation:
In the two independent samples application, it involves the test of hypothesis that is the difference in population means, μ1 - μ2. The null hypothesis is always that there is no difference between groups with respect to means.
Null hypothesis: ∪₁ = ∪₂. where ∪₁ represent the mean of sample 1 and ∪₂ represent the mean of sample 2.
A researcher can hypothesize that the first mean is larger than the second (H1: μ1 > μ2 ), that the first mean is smaller than the second (H1: μ1 < μ2 ), or that the means are different (H1: μ1 ≠ μ2 ). These ae the alternative hypothesis.
Thus for the z test:
if n₁ > 30 and n₂ > 30
z = X₁ - X₂ / {Sp[√(1/n₁ + 1/n₂)]}
where Sp is √{ [(n₁-1)s₁² + (n₂-1)s₂²] / (n₁+n₂-2)}
I think it’s c I’m not to sure thi