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.
Answer:
s cm+s cm+s cm+s cm
Step-by-step explanation:
Step-by-step explanation:
where is the question I will answer please?
Answer:
Step-by-step explanation:
- Rays AB and AM intersect at point A
Answer: A. x= -50
Step-by-step explanation:
1/5x = -10
<u> 1 </u>= -10
5x
1.1 = 5x. (-10)
- 50x
x= -50
