HELP. HOW DO I SOLVE THIS?

HELP. HOW DO I SOLVE THIS?

Answers

Answer 1

The margin error is 2.82%.

What is Margin of Error?

A margin of error is a statistical measurement that accounts for the difference between actual and projected results in a random survey sample

The margin of error for a sample proportion is given by

[tex]z_{\alpha /2}\sqrt{ \frac{p(1-p)}{n} }[/tex]

where p is the sample proportion and n is the sample size.

Consider the  confidence level of 95%, then  [tex]z_{\alpha /2}[/tex] = 1.96

p = 53% = 0.53 and n =1200

Thus, Margin of error=

[tex]z_{\alpha /2}\sqrt{ \frac{p(1-p)}{n} }[/tex]

=1.96[tex]\sqrt{ \frac{0.53(1-0.53)}{1200} }[/tex]

=1.96*0.0144

=0.0282

= 2.82%

Hence, margin error is  2.82%.

Learn more about Margin of error here:

https://brainly.com/question/3969072

#SPJ1


Related Questions

Using the information in the table, how many feet are in 6 yards?

Answers

Answer:

18 ft.

Step-by-step explanation:

While you don't have the table provided, this is still a relatively simple problem to solve.

As we know, there are 3 feet per 1 yard (this can be written as 3 ft. = 1 yd. if that's easier to comprehend). So, if we're trying to find how many feet are in 6 yards, you'll write out your equation as 3*6=?. To find what ? is, you'll do the multiplication: 3*6-18.

So, with this, there are 18 feet in 6 yards.

Hope it helps ………………..

May 06,
Watch help video
A cube has
an edge length of 7 inches. What is its volume, in cubic inches?

Answers

Answer:

343 cubic inches

Step-by-step explanation:

7 times 7 times 7 is 343

A town's population is currently 2,183. If the population doubles every 28 years, what will the population be 140 years from now?

Answers

Answer:

=69805

Step-by-step explanation:

This is an exponential growth problem.  If the population doubles periodically, it follows a law like this:

P(t) = P(0)e^kt

where P(0) is the initial population at time t=0, and k is a constant with units of years-1.

To find k, let t=0.  Then P(t) = P(0) = initial population = 2183.

Since the population doubles every 28 years, we can write

P(t+28) = 2P(t)

P(0)ek(t+28) = 2[P(0)e^kt] 

Simplifying,

e²⁸k = 2

k = ln(2) / 28 = 0.02475 years-¹

Finally,

P(t) = 2183e⁰.⁰²⁴⁷⁵t, t in years

P(t)= 2183e^0.02475t, t in years

Then at t=140 years from now,

P(140) = 2183e⁰.⁰²⁴⁷⁵×¹⁴⁰

P(140) = 2183e^(0.02475 × 140) = 69804.61168

=69805

 

Answer: 69,856

Step-by-step explanation: First, find out how many times the population will double. Divide the number of years by how long it takes for the population to double.

140÷28=5

The population will double 5 times.

Now figure out what the population will be after it doubles 5 times. Multiply the population by 2 a total of 5 times.

2,18322222=69,856

That calculation could also be written with exponents:

2,18325=69,856

After 140 years, the population will be 69,856 people.

i neeeeed this answer pls hurry the next if someone gets this question right ill give all my points

Answers

Solving the inequality, it is found that three values that would make the inequality true are given as follows: y = 12, y = 15, y = 18.

What is the solution to the inequality given in the problem?

The inequality is given by:

y + 7 > 18.

We solve it similarly to an equality, hence the solution is given as follows:

y > 18 - 7.

y > 11.

Hence three values that would make the inequality true are given as follows: y = 12, y = 15, y = 18.

More can be learned about inequalities at https://brainly.com/question/25235995

#SPJ1

some more fractions, with common denominators

Answers

Answer:

[tex]\frac{5}{6}-\frac{1}{9} = \frac{45}{54} -\frac{6}{54} = \frac{13}{18}[/tex]

Step-by-step explanation:

An easy way to find a common denominator is to multiply the denominators against each other, like this:

[tex](\frac{9}{9})\frac{5}{6}-\frac{1}{9} (\frac{6}{6})[/tex]

Now, simplify:

[tex]\frac{45}{54}-\frac{6}{54}[/tex]

Then, subtract:

[tex]\frac{39}{54}[/tex]

Simplify:

[tex]\frac{13}{18}[/tex]      (Divide numerator and denominator by 3)

Hope this helps!!

Here is a list of numbers: 4 , 9 , 2 , 5 , 4 , 20 , 16 , 9 , 5 , 12 State the median.

Answers

Answer:

I'm pretty sure the median is 7

Step-by-step explanation:

Well To find the median, first order your data. Then calculate the middle position based on n, the number of values in your data set.

2 2 4 5 5 9 9 12 16 20. Then add the 2 middle numbers. 5 and 9. It is (5+9) divided by 2 is 7.

Hope this helps!

jackson was trying to find the hypotenuse of a triangle the two legs are 4 and 8. What is the hypotenuse?

Answers

Answer:

The hypotenuse is 4√5.

Step-by-step explanation:

[tex] \sqrt{ {4}^{2} + {8}^{2} } = \sqrt{16 + 64} = \sqrt{80} = \sqrt{16} \sqrt{5} = 4 \sqrt{5} [/tex]

the equation of a circle is x^2 + y^2 + 6y=7

Answers

Answer:

x = [tex]-3 + \sqrt{(4+x)(4-x)}[/tex]

y = [tex]-3 - \sqrt{(4+x)(4-x)}[/tex]

Step-by-step explanation:

[tex]x^2 + y^2 + 6y=7\\[/tex]

⇒ [tex]\left(x-a\right)^2+\left(y-b\right)^2[/tex]

[tex]\left(x-0\right)^2+\left(y-\left(-3\right)\right)^2 =4^2[/tex]

What happened in this math problem:

We used the standard circle formula to find the properties of the circle as well as its variables.

Money
Q1.
One day Sally earned £60
She worked for 8 hours.
Work out Sally's hourly rate of pay.

Answers

Answer:

She's paid 7.50 pounds an hour

Step-by-step explanation:

7.50 x 8 = 60

Convert 54.6% to a fraction in simplest form and a decimal.

Answers

Answer:

the answer is 54.6/1 i really im not sure

Step-by-step explanation:

what is the horizontal shift of the function y=4sin(2x-pi)
A) pi units to the right
B) pi/2 units to the right
C) pi/3 units to the right
D) pi/4 units to the right

Answers

Answer:

B) π/2 units to the right

Explanation:

Function : y = 4sin(2x-π)

Basic's:

f(x) = A * g(Bx - C) + D where C/B is phase shift, D is vertical shift.

For this trigonometric function

Identify: B = 2, C = π, D = 0

Horizontal shift:

π/2

Vertical shift:

0

AYO PLEASE HELP ASAP :(

Answers

Answer:

573440 kg

Step-by-step explanation:

Given,

Density of copper ( D ) = 8960 kg / m³

Length of cube ( l ) = 4 meters

To find : Mass of solid cube of copper ( m )

Formula : -

Volume of cube = l³

Volume of cube

= l³

= 4³

= 4 x 4 x 4

= 64 meter³

So,

V = 64 meter³

Formula : -

D = m / V

m = D x V

   = 8960 x 64

m = 573440 kg

Hence,

The mass of a solid cube of copper is 573440 kg.

Find the sum of (–4 i) and (10 – 5i). –3 5i –3 - 5i 6 – 4i 6 – 6i

Answers

The numbers are complex numbers, and the sum of the complex numbers (-4 +i) and (10 - 5i) is 6 - 4i

How to evaluate the sum?

The expressions are given as:

(-4 +i) and (10 - 5i)

The sum is represented as:

Sum = (-4 +i) + (10 - 5i)

Open the brackets

Sum = -4 +i + 10 - 5i

Collect like terms

Sum = -4  + 10 +i - 5i

Evaluate the like terms

Sum = 6 - 4i

Hence, the sum of the complex numbers (-4 +i) and (10 - 5i) is 6 - 4i

Read more about complex numbers at:

https://brainly.com/question/10662770

#SPJ4

Find the missing side length to the nearest tenth of a millimeter. Enter your answer in the box.

Answers

Answer:

≈ 4.7 mm

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

the square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

let x be the missing side , then

x² + 5.2² = 7²

x² + 27.04 = 49 ( subtract 27.04 from both sides )

x² = 21.96 ( take square root of both sides )

x = [tex]\sqrt{21.96}[/tex] ≈ 4.7 mm ( to the nearest tenth )

Pls help asap. annie traveled 2/7 parts of her trip in the first hour, and then 1/8 parts in the second hour. she plans to rest when she has completed half of her trip. what part of the trip does annie still have to travel to reach her destination.

Answers

The part of the trip does Annie still have to travel to reach her destination is 24.64.

Annie traveled 2/7 parts of her trip in the first hour, and then 1/8 parts in the second hour. she plans to rest when she has completed half of her trip.

what part of the trip does Annie still have to travel to reach her destination.

We have to determine part of the trip does Annie still have to travel to reach her destination

Annie traveled 2/7 parts of her trip in the first hour, and then 1/8 parts in the second hour.

She plans to rest when she has completed half of her trip.

2/7 Annie traveled in the first hour = 2/7*60 = 17.1428hours

and 1/8 in one hour,

1/8*60=7.5minutes

What are the total hours to reach the destination?

The distance traveled in the first hour+distance traveled in the second hours=total distance travelled.

Therefore the total distance =7.5+17.14=24.64

The part of the trip does Annie still have to travel to reach her destination is 24.64

To learn more about the distance visit:

https://brainly.com/question/17273444

#SPJ1

2.75 divided by 4.5 in simplest form

Answers

Answer:

0.6 ...........................

pls help me find the area of compound shapes?!?!

Answers

3x7 + 2x3 = 22 + 6 = 28 is the area
Answer= 27cm^2

Explanation:
• First, we split this shape into two rectangles.
• Area of bottom rectangle; 5x3=15cm^2
• Area of horizontal rectangle; 2x6=12cm^2
• Now we add the two rectangle areas together.
• 15cm^2 x 12cm^2= 27cm^2

convert decimal 165 into binary​

Answers

Write 165 as a sum of powers of 2 :

165 = 128 + 37

165 = 128 + 32 + 5

165 = 128 + 32 + 4 + 1

165 = 2⁷ + 2⁵ + 2² + 2⁰

This translates immediately into the decimal expansion of a binary number,

165 = 1×2⁷ + 0×2⁶ + 1×2⁵ + 0×2⁴ + 0×2³ + 1×2² + 0×2¹ + 1×2⁰

so that

165₁₀ ≡ 1010 0101₂

Answer:

10100101₂

Step-by-step explanation:

To convert decimals to binary, you have to divide the decimal by 2 until it meets zero. Also, while dividing the number by 2 you have to write the remainder in each step. And then you have to write the remainders from bottom to top.

Let us solve it now.

2 |165

2 |82  -  1

2 | 41   - 0

2 |20   -  1

2 |10    - 0

2 | 5   - 0

2 |2      - 1

2 | 1     - 0

    0    - 1

Now write the remainders from bottom to top.

165 = 10100101₂

Which relationships could have a negative correlation? Select three options.
number of hours on video games and test scores
speed of a car and minimum stopping distance
average running speed and total race time
adult's head circumference and age
outside temperature and amount of a heating ba

Answers

number of hours on video games and test scores, average running speed and total race time, and outside temperature and amount of a heating bill

The m<1=9y-2 and m<3=7y+16.Find the measure of both angles

Answers

The measure of the angles are 91.375°and 88.625°. Both the angles are obtained by the supplementary angle principal.

What exactly are supplementary angles?

Supplementary angles are two angels whose total is 180 degrees. When a straight line is crossed by a line, two angles develop on each of the examined straight line's sides.

Two sets of additional angles make up those two-two angles. That is, if supplementary angles are placed next to each other, the exterior sides of their exterior sides will form a straight line.

The given data in the problem is;

∠1 = 9y-2

∠2 = 7y+16

The sum of the supplementary angle is 180

⇒9y-2 +7y+16 = 180

⇒16y +14 =180

⇒16y= 166  

⇒ y=10.375

The measure of the angle 1 is;

∠1 = 9y-2

∠ 1 = 9 ×10.375 -2

∠ 1 = 91.375°

The measure of the angle 2 is;

∠2 = 7 × 10.75 +16  

∠2 = 88.625°

Hence, the measure of the angles are 91.375°and 88.625°.

To learn more about the supplementary angle,refer to the link;

https://brainly.com/question/2882938

#SPJ1

Help Pls ASap Thanks

Answers

We have the point (3, 22.5), which means every 3 candles, Victor gains 22.5 dollars.

Similarly to the point (7, 52.5), which means every 7 candles, Victor gains 52.5 dollars.

-> Every 1 candle, Victor gains 7.5 dollars.

In which picture is point A at 3/4

Answers

Answer:

Bottom right.

Step-by-step explanation:

It is not the top left because that is 1/2,

It is not the bottom left because that is 2/3,

It is not the top right because that is 3/5,

It is the bottom right because it is 3/4.

How to find the perimeter and area on a coordinate plane

Answers

To find the perimeter and area on a coordinate plane, first find each distance between points and then find perimeter and area with these lengths.

What is a distance formula?

It is defined as the formula for finding the distance between two points. It has given the shortest path distance between two points.

Let's suppose if we have coordinates (a, b) (c, d), (e, f), and (g, h) on a coordinate plane.

We can use the distance formula to get the length of each side and then adding all the side lengths to get the perimeter of the figure, which is represented by the coordinates on a coordinate plane.

The distance formula can be used:

If we want the distance between (a, b) and (c, d)

[tex]\rm Distance = \sqrt{(c-a)^2+(d-b)^2}[/tex]

Similarly, we can find the distance for all the coordinates.

Let's assume the figure is a rectangle on a coordinate plane:

Then area = length×width

Thus, to find the perimeter and area on a coordinate plane, first find each distance between points and then find perimeter and area with these lengths.

Learn more about the distance formula here:

brainly.com/question/18296211

#SPJ4

please someone help me on this question

Answers

Answer:

A

Step-by-step explanation:

That is the original and unchanged version of the quadratics.

Hope this helped! :)

A Happy Meal at McDonalds can have up to 4 different toys in it, each being equally likely to get. One of the toys is a Mario toy. What is the probability that a child will get the Mario toy 2 times in a row?

Answers

Answer:

The probability is 4 1 because there is four toys and the probability that the kid will get a Mario toy twice in a row has a low chance becuase, there are three other toys

Step-by-step explanation:

What is the surface area of the cylinder

Answers

Answer:

In terms of pi: 164.5pi cm squared

Substituting pi for 3.14: 516.53 cm squared

Step-by-step explanation:

3.5^2 = 12.25pi

12.25*2 = 24.5pi

7pi*20 = 140pi

140 + 24.5 = 164.5pi

164.5*3.14 = 516.53

Tell me what can you used (Ex. Chunky Soup or Kroger Green Beans) _Chef Boyardee Ravioli_
Measure the diameter and place it here: _3_
Measure the height and place it here: _4.7_
The closet I am looking at is 24 inches wide, 109 inches tall with a length of 36 inches.
Using the Fermi Process, you need to estimate the number of cans that will fit in the closet.

Answers

I don’t know I need help to

The base of a hexagonal pyramid has an area of 92 square inches. the height of the pyramid is 6 inches. find the volume of the pyramid.

v =
in.3

Answers

Answer:

184in.³

Step-by-step explanation:

volume of a pyramid = (1/3) • base_area • height

6 • 92 = 552(1/3) = 184

help me pleaseeeeeeeeee ​

Answers

Answer:

was less affective on males in the study because only 27 % of them lost weight, whereas 3% of the females lost weight.

Step-by-step explanation:

It had less affective on males in the study. And there is a diffrent amount of males and females who tried the weight loss supplement.

hopefully this helps you

- Matthew

I need help to find the unknown angle measures.And the equation pls, the problem is down below.

Answers

Answer:

Step-by-step explanation:

Corresponding angles equal 180 degrees when added

6x + 3x = 180

9x = 180

x = 20

angle CBD is 60 and angle GFH is 120

3(20) = 60

6(20) = 120

Other Questions
Find the slope pls help Fatima signs up to volunteer with the Special Olympics. Which task might she complete as part of her duties?signing people up to votekeeping time during a racetutoring children in sciencesorting deliveries at a food bank Which parallelogram has an area of 60 square units? PLEASE ANSWER, HELP MEEE How does lobbying negatively affect government? lobbyists can provide information on issues to the public. lobbyists control the information that lawmakers receive. lobbyists overload lawmakers with biased information. lobbying creates opportunities for corruption. Question 13 of 25True or false? The graph represents a function Huntington's disease is an inherited disease that causes the progressive degeneration of nerve cells in the brain, resulting in significant physical, mental, and behavioral decline. There is no treatment or cure. A patient whose father has Huntington's disease is considering genetic testing to determine if she also will develop the disease. Which of the following would NOT be a benefit of the genetic testing? (2 points) Which two Integers is 29 between What factors promoted the growth of science in the 1500s? What civilization had the greatest influence on Roman sculpture?o A. EgyptianO B. PersianOC. GreekD. Phoenician Simplify x = cos[2 arcsin(3/5)].-7/257/254/5 how did changes to american voting rights benefit andrew jackson in the 1828 presidential electionA. they gave poor white voters more powerB. they allowed women to vote for the first timeC. they made wealthy voters more influentialD. they made it easier for ethnic minorities to vote Which trigonometric function does the graph below represent? B- spect the items that dont belong with the others C-which activity is logically associated with the items use infinite form of the verb Help needed on beginner Latin homework. Shown underneath. Please help.Thanks!Complete the sentence with either of the words in brackets.a...............pecniam portbant. (servus,servi)b...............trium circumspectat. (fr, frs)c...............clmorem audvrunt. (merctor, merctors) What is an example of a voltaic cell and an electrolytic cell used in everyday life? The cells control center -2x - 3y = -7y = 6x - 11O (4,3) (2,1)O (1,2)O (2,3 The old man and the sea which details from the old man and the sea by hemingway reflect characteristics of modernism? select the two correct answers. o even though santiago has a meager existence, he has hope and dreams for the future. hemingway includes santiago's dream of watching lions playing on the beach from when he was young. o hemingway explains santiago's failures as a fisherman by emphasizing how long it's been since he's caught a fis santiago is an old man who lives a hand-to-mouth existence in a shack on the beach in cuba. 1 2 3 4 5 6 7 8 6 A student heated some copper(II) carbonate using this apparatus:metalcarbonatelimewaterHEAT(a) Describe and explain what would happen to the limewater (2)(b) Write a balanced chemical equation, including state symbols,for the reaction that occurs when copper (II) carbonate isheated.