Answer:
z-test.
Step-by-step explanation:
We want to perform an hypothesis test for a population mean.
In the case that the <u>standard deviation of the population is known</u> and the population distribution is normal, even if the sample is small, <u>we will use a z-test</u>.
The usual case is to not know the standard deviation of the population, in which case a t-test is adequate instead of a z-test, taking into account the degrees of freedom of the sample.
So basically, 9 cakes need 225 grams of flour
Therefore 1 cake needs:
= 25 grams of flour
Moreover, 20 cakes need: 20 × 25 = 500 grams of flour
500 g > 475 g
Marian does not have enough flour to make 20 cakes
You rented 12 movies ( 68.88 - 45.00 = 23.88 then divide 23.88 by 1.99 to get 12)
C (I think, I don't know for sure but i'm 99.93% sure!)
Answer:
A: $2,957.04
Step-by-step explanation:
Use the formula a(1-r)^x
Plug in your values:
5,950(1-0.11)^6
Your answer should be 2957.038681
Round it to 2,957.04
