Answer:
You must test a sample size of at least 514 Americans.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence interval 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
is the margin of error.
95% confidence interval
So 
, z is the value of Z that has a pvalue of 
, so 
.
We have that:
So
You must test a sample size of at least 514 Americans.
I think it’s b i’m sorry if it’s wrong
Data:
Tape size = 1224 cm → 12.24 m
Price per size = <span>$0.75/m
Solving: </span>Rule of three (directly proportional)<span>
$ (price) __ (Size)
0.75 ----------- 1 m
y --------------- 12.24 m
Multiply cross
</span>
<span>
Answer:
</span><span>
She paid for the tape $ 9.18</span>
Because all the sides have to be even to make a square if it wasn't then it wouldn't be a square
