Answer:
-1.15
Step-by-step explanation:
Subtract 0.4 from −
0.75
.
Answer:
The standard error of the mean (SE) is of 0.326lb.
Step-by-step explanation:
The standard error of the mean is given by the following formula:

In which s is the standard deviation of the sample and n is the size of the sample.
In this problem, we have that:

Then

The standard error of the mean (SE) is of 0.326lb.