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.
The answer is (22) hope it helps have a great day
<span>The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.</span>
3x^3+2x^2-32x+2 | x-3
-----------------
-3X^3+9x^2 3x^2 +11x+1
-------------------------
/ 11x^2-32x+2
-11x^2+33x
------------------
/ x+2
-x+3
-------
/ 5
⇒ (3 x^3+2X^2-32x+2) : (x-3)= 3x^2+11x+1 rest 5