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:
3x+50 = 6x - 10
6x -3x = 50+10
3x = 60
x = 20
answer
x = 20
Answer:
11
Step-by-step explanation:
The third term is when n = 3, so simply plug 3 into the equation:
f(3) = 3 * 3 + 2 = 9 + 2 = 11
Thus, the answer is 11.
Hope this helps!
_____ is a measure of dispersion that indicates how much scores in a sample vary around the mean of the sample.
Answer: Standard deviation is a measure of dispersion that indicates how much scores in a sample vary around the mean of the sample.
Standard Deviation is how much the members of a group differ from the mean value for the group.
