Tia wants to hang a big letter T on the door of her bedroom. She plans to cut the T from cardboard and then paint it red. The di
mensions of the T are shown in the figure. How much area does Tia need to paint if she paints only one side of the letter?
A.
46 square centimeters
B.
96 square centimeters
C.
176 square centimeters
D.
320 square centimeters
A.
46 square centimeters
B.
96 square centimeters
C.
176 square centimeters
D.
320 square centimeters
2 answers:
You might be interested in
Answer: C. 461
Step-by-step explanation:
We know that the formula to find the sample size is given by :-
, where = Population standard deviation from prior study.
E = margin of error.
z* = Critical value.
As per given , we have
E= 15
Significance level :
Critical value (Two tailed)=
Now , Required sample size =
[Round to next integer]
Hence, the required sample size to be taken is 461.
Correct answer = C. 461