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Elina [12.6K]
3 years ago
13

Sturdy's paper plates costs $3.12 for 24 plates. Paperoni's paper plates cost $4.32 for 36 paper

Mathematics
2 answers:
Kay [80]3 years ago
8 0

Answer:

$4.32 for 36 paper plates. It is 1 cent cheaper per plate.

maks197457 [2]3 years ago
5 0
24 plates= 0.27$ each
36 plates= 0.12$ each
So Paperoni’s plates are a better deal
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A researcher wishes to​ estimate, with 9090​% ​confidence, the proportion of adults who have​ high-speed Internet access. Her es
Sunny_sXe [5.5K]

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 : z_{\alpha/2}=1.645

a) Prior estimate of true proportion: p=28%=0.28

Formula to find the sample size :-

n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.28(1-0.28)(\dfrac{1.645}{0.05})^2\\\\=218.213856\approx219

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 :-

n=0.5(1-0.5)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.25(\dfrac{1.645}{0.05})^2\\\\=270.6025\approx271

Required minimum sample size= 271

8 0
3 years ago
What is the answer to A+5b=c for b? Im stuck
Nastasia [14]
I think you meant a+5(b)+c  the answer is b is a unknown value
8 0
3 years ago
Read 2 more answers
Part A: Which of the following points are on the same line that passes through the (7,-7),(21,14),(49,35)? Select all
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It is C hope i helped you!;)
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The brackets for a shelf are in the shape of a triangle. Find the angles of the triangle if the
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6 0
3 years ago
14-3(5t-12)=1-(20t+1)<br> How am I supposed to do this?
Nuetrik [128]
Expand by multiplying out:

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5t = -50  Divide both sides by 5.
t =  -50/5
t = -10.


5 0
3 years ago
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