Answer:
The value of the test statistic is 
Step-by-step explanation:
The formula for the test statistic is:

In which X is the statistic,
is the mean,
is the standard deviation and n is the number of observations.
In this problem, we have that:

So



The value of the test statistic is 
I’m not really sure but I would have to guess 4.5 because all of the other numbers don’t have decimals
Answer:
19
Step-by-step explanation:
6
sorry it's late but hopefully it can help someone else
Answer:
Yes
Step-by-step explanation:
