A nationwide poll asked a random sample of US adults the question, “Are you in favor of making Election Day a federal holiday?” Based on the results of this poll, the 95% confidence interval for the population proportion who favor making Election Day a federal holiday is (0.64, 0.70).
Calculate the point estimate and margin of error for the given confidence interval.
Enter both values to 2 decimal places.
The point estimate =
The margin of error =
Answers
Answer: point estimate = 0.67 and Margin of error = 0.03 .
Step-by-step explanation:
For confidence interval,
Lower limit = point estimate - margin of error
Upper limit = point estimate + margin of error
Given confidence interval: (0.64, 0.70)
i.e. Lower limit = 0.64
Upper limit = 0.70
i.e. point estimate - margin of error= 0.64 (i)
point estimate + margin of error= 0.70 (ii)
Adding (i) and (ii) , we get
2( point estimate) = 1.34
⇒ point estimate = 0.67
Eliminate (i) from (ii) , we get
2( Margin of error ) = 0.06
⇒ Margin of error = 0.03
Hence, point estimate = 0.67 and Margin of error = 0.03 .
Answer:
Step-by-step explanation:
Question: A nationwide poll asked a random sample of US adults the question, "Are you in favor of making Election Day a federal holiday?” Based on the results of this poll, the 95% confidence interval for the population proportion who favor making Election Day a federal holiday is (0.64, 0.70).
Based on this poll, a reporter claims that more than three-fourths of U.S. adults favor making Election Day a federal holiday.
Answer : D
Related Questions
Are the ratios 1:5 and 3:15 equal?
Answers
Answer:
no, 3/15 reduces to 1/3 and 1:3 isn't equal to 1:5
Answer:
yes they are because they are by three
Step-by-step explanation:
a flagpole cast a shadow 25 meters long when the angle of elevation of the sun is 40 how tall is the flag pole to the nearest meter
Answers
Answer:12.59
Step-by-step explanation:
enter image source here
From the diagram you can see that we have constructed a right triangle, with height A and base 15.
Length of shadow = 15 feet.
Height of flagpole = A.
We know the angle of elevation is
40
∘
. Using this angle and the tangent ratio, we can find A.
tan
(
40
∘
)
=
opposite
adjacent
=
A
15
∴
tan
(
40
∘
)
=
A
15
Rearranging:
A
=
15
tan
(
40
∘
)
By calculator:
A
=
12.59
feet. ( 2 d.p.)
help with this slope
Answers
Answer:
20,100 I think
Step-by-step explanation:
Answer:
20/10
Step-by-step explanation:
goes up 20
goes to the right 10
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Answer:
smell my feet nnnnnnnnnsdsdsdnnnsdsdnigdsga
Step-by-step explanation:
Write the equation x2+24x+60=0 in the form (x+p)2=q
Answers
Answer:(x + 12) ^2 -60
Step-by-step explanation:i evaluated this and i got it
A triangle has angle of 30 degree, 60 degree, 90 degree. It is dilated by a scale of 3. Give the angle measures of the dilation of the triangle.
Please help me with this question and explain your answer too...
Answers
Answer:
No matter what scale factor is dilated, the angles will not change.
My explanation:
A 30-60-90 right triangle (literally pronounced "thirty sixty ninety") is a special type of right triangle where the three angles measure 30 degrees, 60 degrees, and 90 degrees. The triangle is significant because the sides exist in an easy-to-remember ratio: 1:√3:2.
That is to say, the hypotenuse is twice as long as the shorter leg, and the longer leg is the square root of 3 times the shorter leg. You might also remember it as "X, 2X, and X roots of 3", which is how I remember it, but then you have to remember that 2X is actually the longest side, not X roots of 3.
Which side is which? The side opposite the 30 degree angle will have the shortest length. The side opposite the 60 degree angle will be √3
times as long, and the side opposite the 90 degree angle will be twice as long. The triangle below diagrams this relationship. Remember that the longest side will be opposite the largest angle, and the shortest opposite the smallest angle.
Hopefully this helped, if not HMU and I will try to get you a better answer! :)
find the e correctly
if u get a correct answer u will get brainliest!
Answers
Hope it helps :)
Simplify (a^-2*b^2/a^2*b^-1)
The answer is B
Answers
Answer:
=b/a^4
Step-by-step explanation:
Fill in the blank by choosing the correct symbol (<, >, or = ): -6 _____ -22 *
Answers
Answer:
the answer is ">"
Answer:
>
Step-by-step explanation:
because -6 is bigger than -22
Idk know how to do it can someone help me
Answers
Answer:
ANSWER
Step-by-step explanation:
In the table, look at the x values. Now, in the function ( the expression in the question) substitute the x values from the table into the function. The first column would be 4x1-1sqaured so 4 x 1 = 4 1 squared is 1 so 4 - 1 is 3. So the answer for the first box is 3.
89 divided by 37 with a reminder and answer
Answers
Answer:89/37=2 remainder 15
Step-by-step explanation:
Check:
37*2=74
74+15=89
Answer:
2.40.405
Step-by-step explanation:
thats with out a reminder
Daniella will go to school five times next week. Find the probability that Daniella will be late more than once.
p = 5/6
Answers
Answer:
1/34
Step-by-step explanation:
its and propity of 1/4 time the value it self plus what you take
Solve the equation | x + 2 | = | x - 6 |. Graph the solutions if possible
Answers
x
x
by simplifying both sides of the equation, then isolating the variable.
x
=
2
The point (-4, 1) is rotated 180 degrees counterclockwise using center (-3, 0). What are the coordinates of the image?
Answers
Answer: Coordinates of the image are (-2 , -1)
Step-by-step explanation:
The rule for 180° rotation counterclockwise is:
(x , y) ⇒ (-x , -y)
This means that to get the coordinates of a point rotated 180° counterclockwise, all you have to do is flip the signs of both the x and the y
Now, we are given the point (-4 , 1)
Applying the above rule:
[tex]( x image, y image) = (-(-4),-(1))[/tex]
[tex](x image, y image) =(-2, -1)[/tex]
83%
The work in an office takes 150 hours to complete every week.
Each person in the office works for 32 hours a week.
a)
What is the smallest number of people needed to complete the work?
b)
The number of hours each person works is decreased to 30 hours a week.
Does the office still need the same number of people?
Answer 'yes' or 'no'.
Answers
Answer:
a) 5
b) yes
a) reason is 5x32 = 160 hour
b) reason is 5x30 = 150 hour
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Answers
Answer:
Y=10
Step-by-step explanation:
Maya estimates that the wait time for her favorite roller coaster is 35 minutes. The actual wait time is 55 minutes. What is the percent error of laya's estimate
Answers
Answer:
36.4%
Step-by-step explanation:
Actual wait time is 55 minutes
Approximate wait time is 35 minutes
Therefore the percent error can be calculated as follows
= 35-55/55 × 100
= 20/55 × 100
= 0.3636 × 100
= 36.4%
Seth sells candles for $14.35 each. Last week, he sold 21 candles. Seth pays $2.40 for materials for every 3 candles. How much did Seth earn last week?
Answers
Answer:
$284.55
Step-by-step explanation:
total of sold candles:$14.35 × 21 = $301.35
total for materials : 21÷3 = 7
=7×$2.40
=$16.8
net earn; $301.35-$16.8 =$284.55
Sofia wants to buy a new pair of jeans. At Pants World, the jeans she wants cost $40 and they're having a 25% off sale. At All Clothes, the same jeans cost $38 and she has a $6 off coupon. What is the best deal?
1.Purchase at Pants World, because the cost after discount will be $15
2.Purchase at Pants World, because the cost after discount will be $30
3.Purchase at All Clothes, because the cost after coupon will be $32
4.Purchase at All Clothes, because the cost after coupon will be $34
Answers
Answer:
number 2
Step-by-step explanation:
Purchase at Pants World, because the cost after the discount will be $30. Then the correct option is B.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
The cost of jeans at the Pants world is calculated as,
⇒ $40 - 25% of $40
⇒ $40 - 0.25 x $40
⇒ $40 - $10
⇒ $30
The cost of jeans at All Clothes is calculated as,
⇒ $38 - $6
⇒ $32
Purchase at Pants World, because the cost after the discount will be $30. Then the correct option is B.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ3
The graph shows the height (h), in feet, of a basketball t seconds after it is shot.
Projectile motion formula: h(t) = -16t^2 + vt + h0
v = initial vertical velocity of the ball in feet per second
h0 = initial height of the ball in feet
Complete the quadratic equation that models the situation.
h(t) = –16t^2 + _t + 6
Answers
Answer:
v=24 feet/sec
I hope this was helpful! :))
Answer:
24
Step-by-step explanation:
What's one way we can check our answer to 2 x10 = 20?
A. 20 : 10 = 2
B. 2 : 10 = 20
C. 20 x 10 = 2
Answers
Answer:
A (does : mean division? If so then A is correct)
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Answers
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Answers
Answer:
Your answer is 50 (or b)
Step-by-step explanation:
You can tell this because the inside angle is 25 but the cornner says 2x so you have to double it so 25+25=50...hope this helps
:P
Answer:
50
Step-by-step explanation:
There is a straight line at the bottom which is 180 degrees. On the right side the angle measure is 150 degrees so you subtract that by 180 and you get 30 degrees making it supplementary. Next you should know that there is 180 degrees in a triangle. Now you formulate the equation 30+50+2x =180. Then you solve for x and you get the solution x=50 which is your answer. Now you can substitute 50 in for x and see if all the angle measures add up to 180 degrees.
If you can please make my answer the brainliest that would be much appreciated. Thanks!
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Answers
Answer:
(0, 0), (4, 0), (4, -5)
Step-by-step explanation:
This one keeps the same lengths of the previous triangle. It also keeps the same proportions (or something) etc, etc. I solved this problem by graphing and seeing which one fit best.
The sum of 35 and a certain number divide by 4. the results is equal to double the number. find the number
Answers
Answer:
Subtract x and divide by 7 to get:
x=5
So now we know the number is 5.
Step-by-step explanation:
Insert each of the following numbers between two consecutive multiple of 10
Answers
Answer:
10 (13) 15
35 (37) 40
45 (48) 50
60 (61) 65
90 (93) 95
Step-by-step explanation:
A water drip system in a garden uses 2/3 cups of water every 1/6 of an hour. a) How much water is used in 1 hour? b) Use your equation to caculate how much water is used after 24 hours.
Answers
Answer:
A) 4 per hour
B) 96 per day
Step-by-step explanation:
A) 2/3 times 6 is 4
B) 4 times 24 is 96
The difference of negative thirteen and eight multiplied by the square of two.
Answers
Answer:
-100
Step-by-step explanation:
(-13-8)2^2
-25*4=-100
PLEASE HELP I HAVE NO CLUE WHAT TO DO
Answers
Answer:
b= \frac{1}{2ha} -c
Step-by-step explanation:
you would multiply to remove the variable from the denominator and simplify
please help i dont understand
Lisa and Molly are on a bridge and see a tree sticking out of the water. Use the diagram to determine how far away Lisa is from the tree in the water. Use appropriate units.
Answers
Answer:
Distance between Lisa and the tree in the water = 26.5 ft
Step-by-step explanation:
From the figure attached,
Lisa is a point L, Molly is at M and a tree stick at point S.
By applying sine rule in ΔLMS,
[tex]\frac{\text{SinL}}{\text{SM}}=\frac{\text{SinM}}{LS}=\frac{\text{SinS}}{\text{LM}}[/tex]
[tex]\frac{\text{Sin(54)}}{22}=\frac{\text{Sin(103)}}{\text{LS}}[/tex]
LS = [tex]\frac{22\times \text{Sin}(103)}{\text{Sin(54)}}[/tex]
LS = 26.5 ft
Therefore, distance between Lisa and the tree in the water is 26.5 ft.