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3 years ago

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Mathematics

1 answer:

iogann1982 [59]3 years ago

4 0

Rome is a city
Tokyo is a city
Houston is a city and is in North America
Peru
Miami is a city and is in North America
Toronto is a city and is in North America
Canada is in North America
I’m a genius xD

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On September 25, 2011 Michael Vick, the quarterback for the Philadelphia Eagles broke his non-throwing hand in a football game a

miskamm [114]

Answer:

D. We are 95% confident that between about 22% and 28% of ESPN Viewers thought the Eagles would still win the division.

Step-by-step explanation:

We have to calculate a 95% confidence interval for the population proportion. The population is made up of ESPN viewers.

The sample proportion is p=0.25.

The standard error of the proportion is:

$\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.25*0.75}{914}}\\\\\\ \sigma_p=\sqrt{0.00021}=0.014$

The critical z-value for a 95% confidence interval is z=1.96.

The margin of error (MOE) can be calculated as:

$MOE=z\cdot \sigma_p=1.96 \cdot 0.014=0.028$

Then, the lower and upper bounds of the confidence interval are:

$LL=p-z \cdot \sigma_p = 0.25-0.028=0.222\\\\UL=p+z \cdot \sigma_p = 0.25+0.028=0.278$

The 95% confidence interval for the proportion of ESPN viewers is (0.222, 0.278) or (22.2%, 27.8%).

7 0

3 years ago

What is 60 percent of 92? 1.53 5.52 15.3 55.2

Scilla [17]

Answer:

[Fourth Option] 55.2

Step-by-step explanation:

60% -> 0.6

0.6 * 92 = 55.2

Have a nice day!

I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

6 0

2 years ago

Find the area of the figure. 7 ft 6 ft 8 ft The area is square feet

masha68 [24]

Answer:

Step-by-step explanation:

6+13=19

19/2=9.5

9.5x8=76

6 0

3 years ago

Where are my smart friends?? I had $3.00. my mom gave me $10.00. my dad gave me $30.00. my aunt and uncle gave me $100.00. I had

Artemon [7]

Answer: The answer is $148.00

I hope this helps

Step-by-step explanation:

6 0

3 years ago

12 T=______________lb

grigory [225]

There are 2000 pounds in one ton, so to find the amount of pounds in a set amount of tons, all we need to do is multiply the amount of tons by the amount of pounds in one ton.

12 * 2000 = 24000

There are 24,000 lbs in 12 tons.
Hope that helped! =)

5 0

3 years ago

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