We would need a sample size of 560.
We first calculate the z-score associated. with this level of confidence:
Convert 95% to a decimal: 95% = 95/100 = 0.95
Subtract from 1: 1-0.95 = 0.05
Divide by 2: 0.05/2 = 0.025
Subtract from 1: 1-0.025 = 0.975
Using a z-table (http://www.z-table.com) we see that this is associated with a z-score of 1.96.
The margin of error, ME, is given by:

We want ME to be 4%; 4% = 4/100 = 0.04. Substituting this into our equation, as well as our proportion and z-score,
Just took the test and got the the correct answer *\(♡°▽°♡)/*
Look at the image down below!!
Answer:
$212.40
Step-by-step explanation:
180+ (180* 18%)= Total Cost
180+ 32.40= Total Cost
212.40= Total Cost
Answer:
4
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
i just used a calculator lol