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:
35/16 2 2/16
Step-by-step explanation:
1 1/4 = 5/4
1 3/4 = 7/4
5 * 7 = 35
4 * 4 = 16
35/16
Answer:
.7
Step-by-step explanation:
700 divided by 10 to the power of three:
10 times 10 times is 1000
700 divided by 1000 is...
.7
Answer: x<-12
Step-by-step explanation:
let x= the number
2x+9<-15
2x<-24
x<-12
Hope this helps!! :)
You may ask any further questions
The answer you are looking for is :
B. (0,4)
