If n = 440 and ^p(p-hat) = 0.1, construct a 99% confidence interval. Give your answers to three decimals. Please list formulas in excel used if possible
___ < p < ___
Answers
====================================================
Explanation:
The spreadsheet is shown below.
In cell B6, the formula used is the NORMINV function to get the z critical value. The name is the result of putting the words "NORM" and "INV" together, which refers to the inverse normal.
It's used to find the value of k in P(-k < Z < k) = 0.99, which in this case is roughly k = 2.576 so the z critical value is roughly z = 2.576
What you type in specifically is [tex]=\text{NORMINV}( (1-0.99)/2, 0, 1)[/tex]
The (1-0.99)/2 portion ensures that we get the alpha/2 value which in this case is 0.005
The 0,1 at the end refers to the mean and standard deviation respectively of the standard normal Z distribution.
The output of that NORMINV function is then made positive and then you'd round to 3 decimal places.
So that's how we can get excel to display z = 2.576
----------
The margin of error E formula is
E = z*sqrt(phat*(1-phat)/n)
which doesn't need an excel function to get the job done, though of course excel can handle it just fine. You'd type in the formula as shown, but be sure to reference the correct cells.
Once E is calculated, we compute the following
L = phat - EU = phat + Ewhich are the lower (L) and upper (U) bounds of the confidence interval.
The results are L = 0.063 and U = 0.137
That confidence interval can be written in the form (0.063, 0.137) which is equivalent to saying 0.063 < p < 0.137
Related Questions
-9 - (-2) as an addition problem
Answers
Answer:
-7
Step-by-step explanation:
-9 - (-2)
If there is a negative sign in front of a negative number in parenthesis, then that makes it a positive number.
-9 + 2 = -7
2. Ken combined a triangle and a trapezoid to
make a parallelogram. If the area of the triangle
is 12 in. 2 and the area of the trapezoid is 24 in.2
what is the area of the parallelogram? Explain.
Answers
Answer:
36 in²Step-by-step explanation:
area of a triangle = 12 in²
area of a trapezoid = 24 in²
just combine the two shape (see image)
then add the area.
total area = 12 + 24
= 36 in²
Please help, WILL GIVE BRAINLEST IF U SHOW UR WORK IF U DONT SHOW WORK ILL REPORT
Answers
Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
Ok so since this is an area question we should begin with writing the correct formula for it. This says it's rectangular pool so we'll be using our rectangle formula, which is...
[tex]A=lw[/tex]
Now we plug in what we know...
[tex]length=30\frac{1}{3} \\width=12\frac{1}{2}[/tex]
Now we solve...
[tex]A=lw\\A=(30\frac{1}{3})(12\frac{1}{2})\\A=379\frac{1}{6}[/tex]
So the area is.... [tex]379\frac{1}{6}[/tex] feet ²
or if you want an improper fraction....[tex]\frac{2275}{6}[/tex] feet²
or a decimal... [tex]379.1666667=379.17[/tex] feet².
∠C and ∠D are complementary.
Let m∠C=(5x)° and m∠D=(7x−6)°.
What is the value of x?
Enter your answer in the box.
x =
Answers
Complementary angles have sum 90°
[tex]\\ \rm\Rrightarrow 5x+7x-6=90[/tex]
[tex]\\ \rm\Rrightarrow 12x-6=90[/tex]
[tex]\\ \rm\Rrightarrow 12x=96[/tex]
[tex]\\ \rm\Rrightarrow x=8[/tex]
Answer:
x = 8
Step-by-step explanation:
Complementary angles are two angles with measures that sum to 90°
Given:
m∠C = (5x)° m∠D = (7x − 6)°⇒ m∠C + m∠D = 90°
⇒ 5x + 7x - 6 = 90
⇒ 12x - 6 = 90
⇒ 12x = 96
⇒ x = 8
I need helpp plss and thanks
Answers
Answer:
1.63
Step-by-step explanation:
-31 + 7 = -24
[tex]\sqrt{-24}[/tex] = 4.9
4.9/3 = 1.63 (rounded down from 1.6333333)
Answer:
[tex]x = 2 \sqrt{2} i \: or \: x = - 2 \sqrt{2} i[/tex]
Step-by-step explanation:
• Add 7 to both sides.
[tex]3x {}^{2} - 7 + 7 = - 31 + 7[/tex]
• Simplify
[tex]3x {}^{2} = - 24[/tex]
• Divide both sides by 3
[tex] \frac{3x {}^{2} }{3} = \frac{ - 24}{3} [/tex]
• Simplify
[tex]x {}^{2} = - 8[/tex]
• Find the solution
[tex]x = \sqrt{ - 8} \: and \: x = - \sqrt{ - 8} [/tex]
• Simplify
[tex] \sqrt{ - 8} = 2 \sqrt{2i} [/tex]
[tex] - \sqrt{ - 8} = - 2 \sqrt{2i} [/tex]
ANSWER:
[tex]x = 2 \sqrt{2} i \: and \: x = - 2 \sqrt{2} i[/tex]
the dogeball team has 10 boys and 20 girls. what percent of the team are boys
Answers
Answer:
33.3 % of the dodgeball team consist of boys.
Step-by-step explanation:
Hope that helps!
Hey, If your reading this I really need help i’m confused about this topic in math, and if someone could please answer it I would be so grateful.
Answers
Answer: its A
Step-by-step explanation:
What is 3/7 of $56
I am not sure
Answers
Answer:
$24
Step-by-step explanation:
1. MULTIPLY: 3 x 56 = 168
2. DIVIDE: 168 / 7 = $24
I hope this helps!
Based on multiplication we have found that 3/7 of $56 is equal to $24.
We are given that the expression 3/7 of $56
To determine 3/7 of $56, we can multiply 3/7 by $56.
Multiply 3/7 by $56:
(3/7) x $56 = (3 x $56) / 7
Calculate the numerator:
3 x $56 = $168
Divide the numerator by the denominator:
$168 / 7 = $24
Therefore, 3/7 of $56 is equal to $24.
Learn more about equations here;
https://brainly.com/question/25180086
#SPJ6
please please please help
Answers
Answer:
It's The following options -
Step-by-step explanation:
A
B
C
D
Are correct
rate of change is the same as will mark brainiest
Answers
Answer:
slope
Step-by-step explanation:
Answer:
slopeStep-by-step explanation:
use the formula: y = mx + b
where:
y = how far up the line goes
m = slope or gradient
x = how far along
b = Y-intercept
-12 + (-3) • 3 - 8 = 4
Answers
Answer:- 29
false
Step-by-step explanation:
Please... Solve this: the bearing of a tree from a house is 295°. Find the bearing of the house from the tree.
Answers
Given parameters:
Bearing of the tree from the house = 295°
Unknown:
Bearing of the house from the tree = ?
Solution:
This is whole circle bearing problem(wcb). There are different ways of representing directions from one place to another. In whole circle bearing, the value of the bearing varies from 0° to 360° in the clockwise direction.
To find the back bearing in this regard, simple deduct the forward bearing from 360°;
Backward bearing = 360° -295°
= 65°
The bearing from house to the tree is 65°
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is placed. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Given a regular square pyramid with RS = 6 and PX = 4, find the following measure.
QS =
Answers
Answer:
The volume of a prism is given by ...
V = Bh
Step-by-step explanation:
Here, the base is an equilateral triangle with side length 3 in. The area of such a triangle is given by
A = (√3)4*s²
where s is the side length.
Your triangular prism has a base area of ...
B = (√3)/4*(3 in)² = (9/4)√3 in²
so the volume is
V = ((9/4)√3 in²)(6 in)
V = (27/2)√3 in³
V ≈ 23.383 in³
:)
i need help i know i said this already but i need it 17.18 + 44.36
Answers
Answer:
61.54
Step-by-step explanation:
The decimal is .36 + .18 which is .54 and 17 + 44 is 61 so 61 + .54 is 61.54
y = x + 1 4 y=-12x-7 -2y=x+14
Answers
[tex]x = y - 14[/tex]
[tex]x = - \frac{y}{12} - \frac{7}{12} [/tex]
[tex]x = - 2y - 14[/tex]
Answer:
Go on brainly,cymath,calculator soup to find the answer
Step-by-step explanation:
After a teacher handed out m packs of notebooks with c notebooks in each pac,he has
13 notebooks left. How many notebooks did he have?
Answers
The value of p² when p= -5 is 25 , please I need help for this question
Answers
Answer:
True
Step-by-step explanation:
Because -5 x -5 = -25
please help me asap
Answers
Answer: C. perpendicular to Earth and the sun
Step-by-step explanation: I studied astronomy. :)
GIVING BRAINLEST
A flower shop is creating arrangements that need exactly 3 roses each. There are 23 roses available. How many arrangements can the flower shop make? Then select your reasoning. (2 answers)
Group of answer choices
7
8
the remainder is 2, so you can make another arrangement
the remainder is 2, so you do not have enough roses for another arrangement
Answers
Answer:
7
Step-by-step explanation:
the remainder is 2, so you do not have enough roses for another arrangement
1111111x2000 pls help
Answers
Why: Calculator
What is the domain of the function Y = 3 In x graphed below?
Answers
Mr. Stevenson owns a bookstore. At the beginning of January, he had 528,741 books in his store. He sold 3,582 books that month and gave away 863 books
Answers
Answer:
Then he should have 524,296 books left
Which of the following is the equation of a line in slope-intercept form for a
line with slope = 1/4 and y-intercept at (0, -1)?
O A. y = 1/4 x -1/4
O B. y= 4x - 1
O C. y= 1/4x+1
O D. y = 1/4x-1
Answers
Answer:D
Step-by-step explanation: answer D. 1/4x-1
slope = 1/4 so the coefficent (number attatched to x) is going to be 1/4
y=-1 when x=0
A. =-1/4
B= -1 but the coefficent is not 1/4
C=1
D=-1
D is the correct answer
Three times the sum of twice n and 6 is the same as the product of n less 2 and four. Find n
Answers
Answer:
61
Step-by-step explanation:
How to do this question
Answers
Answer:
Check your mathematics Text book...Then you can see heading True conditional statement..Check the example question then i am sure you will get the correct answer...
Pearson College owns a tabulator that can process registration data in 6 hours. Wanting to speed up the
processing, the school authorized the purchase of a second tabulator that can do the job in 8 hours. How many hours will it take the two tabulators working together to process all the data? (24/7 hr)
Answers
Answer:
∞
Step-by-step explanation:
Let both be x and y
6x=8y=>3x=4y=>x=4y/3So
[tex]\\ \rm\Rrightarrow 6x+8y=1[/tex]
[tex]\\ \rm\Rrightarrow 6(4y/3)+8y=1[/tex]
[tex]\\ \rm\Rrightarrow 8y+8y=1[/tex]
[tex]\\ \rm\Rrightarrow y=1/16[/tex]
[tex]\\ \rm\Rrightarrow y=0.0625[/tex]
How would you answer Q5 e step by step please
Answers
Answer:
[tex]\sqrt{6} -3\sqrt{2}[/tex]
Step-by-step explanation:
[tex]\sqrt{150} -\sqrt{96} -\sqrt{162} +\sqrt{72}[/tex]
[tex]=\sqrt{25\cdot6} -\sqrt{16\cdot6} -\sqrt{81\cdot2} +\sqrt{36\cdot2}[/tex]
[tex]=\sqrt{25}\sqrt{6} -\sqrt{16}\sqrt{6} -\sqrt{81}\sqrt{2} +\sqrt{36}\sqrt{2}[/tex]
[tex]=5\sqrt{6} -4\sqrt{6} -9\sqrt{2} +6\sqrt{2}[/tex]
[tex]=\sqrt{6} -3\sqrt{2}[/tex]
Answer:
See below.
Step-by-step explanation:
a) √2 + √50 + √98
= √2 + 5√2 + 7√2
= 13√2
c) 5√7 + 2√5 - 3√28
= 5√7 + 2√5 - 6√7
= 2√5 - √7
e) √150 - √96 - √162 + √72
= 5√6 - 4√6 - 9√2 + 6√2
= √6 - 3√2
g) 7√3 - 2√8 + √12 + 3√8
= 7√3 - 4√2 + 2√3 + 6√2
= 9√3 + 2√2
i) 3√49 + 2√288 - √144 - 2√18
= 21 + 24√2 - 12 - 6√2
= 9 + 18√2
= 9(1+ √2)
A bakery sells chocolate cupcakes and mocha cupcakes. One day it sold 368 chocolate and 32 mocha. What percent of the cupcakes sold that day were chocolate?
Answers
Answer:
92%
Step-by-step explanation:
368+32=40
368*100=36800 36800/400=92
A function is defined by y = 2x + 1. What is the range of the function if the domain is {0, 2, 3}?
{0, 4, 6}
{0, 4, 6}
{1, 5, 7}
{1, 5, 7}
{0, 2, 3}
{0, 2, 3}
{2, 4, 5}
{2, 4, 5}
Answers
9514 1404 393
Answer:
{1, 5, 7}
Step-by-step explanation:
For x=0, y = 2·0 +1 = 1
For x=2, y = 2·2 +1 = 5
For x=3, y = 2·3 +1 = 7
The range is the list of y-values, so is {1, 5, 7}.
at the movies, la quinta paid for drinks and popcorn for herself and her two children. she spend twice as much on popcorn as on drinks. if her total bill came to $17.94, how much did she spend on drinks and how much did she spend on popcorn?
Answers
Answer:
Step-by-step explanation:
let the amount spent on popcorn be x and amount spent on drinks be y
If the total bill paid is $17.94, then x+y = $17.94
If she spend twice as much on popcorn as on drinks, then y = 2x
Substitute y = 2x into the original equation
x+y = $17.94
x + 2x = $17.94
3x = $17.94
x = $17.94/3
x = $5.98
Since y = 2x
y = 2($5.98)
y = $11.96
Therefore she spent $5.98 on popcorn and $11.96 on drinks