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:
Answer:
vvvIf the perimeter of the rectangle is 60 in, find its area.
Step-by-step explanation:
The first thing you do is you divide the annual interest
into 12 months
4.8 % / 12
Make sure that you convert the interest
So 0.048/12
Then you get the interest last month so that is
2.25/ (0.048/12)
The answer is 562.5
B.$562.5
I think it’s 202
all i did was multiply and add them up together, all though i’m not great at math but i hope you get it right lol
