Answer:
The sample size will be "
". A further explanation is given below.
Step-by-step explanation:
Let the sample size will be:
= n
The given values are:
Standard deviation,
= 1.4
ME,
= 0.3
As we know,
⇒ 
On putting the estimated values, we get
⇒ 
⇒ 
⇒ 
P(n, r) = n!
____
(n-r)!
= 8!
____
(8-1)!
= 8
18 times 4 = 72
Both started with 72 Martha sold more
They’re parallel to each other
I’m pretty sure it’s D??? But it also could be B I’m sorry :( trying to help as much as possible