Answer:
Note:
Three-tenths reapeating is
Answer:
the square rug will cover 0.33 square feet more
Step-by-step explanation:
The area of a rectangle is the product of its length and width. The area of the rectangular rug is ...
(4.8 ft)(8.2 ft) = 39.36 ft^2
Similarly, the area of the square rug is ...
(6.3 ft)(6.3 ft) = 39.69 ft^2
The square rug has the larger area by ...
39.69 -39.36 = 0.33 . . . square feet
Answer: a) Required minimum sample size= 219
b) Required minimum sample size= 271
Step-by-step explanation:
As per given , we have
Margin of error : E= 5% =0.05
Critical z-value for 90% confidence interval :
a) Prior estimate of true proportion: p=28%=0.28
Formula to find the sample size :-
Required minimum sample size= 219
b) If no estimate of true proportion is given , then we assume p= 0.5
Formula to find the sample size :-
Required minimum sample size= 271