A=Pe^rt
P=principal(starting)
E= function on calculator
r= rate
T= time (how long)
Answer:

Step-by-step explanation:
Given


Required

First, we calculate the z score






So:


From z probability, we have:

11 = w - 12
11 + 12 = w -12 + 12
w = 11 + 12
w = 23
Answer:
The conclusions apply only to the sample.
Step-by-step explanation:
Since the sample size is small, it's not likely to be representative of any larger population.
I hope this helps!