Considering the margin of error of a confidence interval, it is found that the correct option is:
It would be half as wide.
<h3>What is the margin of error of a confidence interval?</h3>
It is modeled by:

In which:
- s is the standard deviation.
From this, we get that the margin of error is inversely proportional to the square root of the sample size. Then, multiplying the sample size by 4, when it changes from 50 to 200, cuts the margin of error in half, making the interval half as wide.
More can be learned about the margin of error of a confidence interval at brainly.com/question/25890103
Answer:Terry need to purchase
of tile and
of carpet for a total area of 
Step-by-step explanation:
step 1
Find the square feet of tile
The area of the tile is equal to

step 2
Find the square feet of carpet
Remember that

The area of the carpet is equal to

61x2=122, sine 122 is an even number it is divisable by 2 so 122 divided by 2 is 61 so 61x2=122
Answer:
24
Step-by-step explanation:
To evaluate this, we just need to substitute 2 for whenever we see x.
40 - 8 (2)
From here, we can just use order of operations to simplify it down to a single number.
40 - 16
24
So, when x = 2, we get 24.
Answer:
-2l -3
Step-by-step explanation:
5l -3+ (-7)l
5l -3 -7l
5l -7l -3
-2l -3