Answer:
awww how cute lol
Step-by-step explanation:
the answer is x=-4 hope it helps
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:
C! Like terms refer to the variables that are the same, rather than the coefficients (the numbers).
Answer:
8x+7
Step-by-step explanation: