Answer:
mean is 8 and median is 15
Step-by-step explanation:
Answer:
The answer is B.x2/4y3n hope it helps
Answer:
G oo g l ee I use it there's a scan
Supplementary angles
x+20+5x+10=180
6x+30=180
6x=150
x=25
Answer:
Step-by-step explanation:
information given
represent the sample mean
represent the population standard deviation
sample size
represent the value that we want to test
represent the significance level for the hypothesis test.
z would represent the statistic
represent the p value for the test
Hypothesis to test
We want to test if the true mean is less than 12, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
The statistic is given by:
(1)
Replacing the info given we got:
We can replace in formula (1) the info given like this: