Answer:
How many friends?
Step-by-step explanation:
Umm do have any pictures to help me answer it or anything?
Answer:
i do not know
Step-by-step explanation:
Answer:
There are no possible solutions for this question.
Step-by-step explanation:
Answer:
The value of the test statistic is of 0.22.
Step-by-step explanation:
Our test statistic is:

In which X is the sample mean,
is the expected mean,
is the standard deviation(square root of the variance) and n is the size of the sample.
A lumber company is making boards that are 2920.0 millimeters tall.
This means that
.
A sample of 12 is made, and it is found that they have a mean of 2922.7 millimeters with a variance of 121.00.
This means that
. So



The value of the test statistic is of 0.22.