Answer:
The sample proportion
is within 0.03 of the true proportion of customers who are under age 21 is 0.803
Step-by-step explanation:
Total no. of customers = n = 400
We are given that the true population proportion of customers under age 21 is 0.68.
So, p =0.68
q=1-p=1-0.68=0.32
Standard deviation =
We are supposed to find the probability that the sample proportion
is within 0.03 of the true proportion of customers who are under age 21 that is , what is the probability that
is between 0.68 - 0.03 and 0.68+ 0.03

Using Z table

Hence the sample proportion
is within 0.03 of the true proportion of customers who are under age 21 is 0.803
Answer:
498. 498/6 = 83.
Step-by-step explanation:
Answer:
A. federal
Step-by-step explanation:
Answer:
−1+m/3
Step-by-step explanation:
Hope it is helpful....