A researcher found, that in a random sample of 111 people, 55
stated that they owned a laptop. What is the estimated standard
error of the sampling distribution of the sample proportion? Please
give y
Answers
the estimated standard error of the sampling distribution of the sample proportion is 0.0455.
A researcher found that in a random sample of 111 people, 55 stated that they owned a laptop. The estimated standard error of the sampling distribution of the sample proportion is 0.0455. Standard error is defined as the standard deviation of the sampling distribution of the mean. It provides a measure of how much the sample mean is likely to differ from the population mean. The formula for the standard error of the sample proportion is given as:SEp = sqrt{p(1-p)/n}
Where p is the sample proportion, 1-p is the probability of the complement of the event, and n is the sample size. We are given that the sample size is n = 111, and the sample proportion is:p = 55/111 = 0.495To find the estimated standard error, we substitute these values into the formula:SEp = sqrt{0.495(1-0.495)/111}= sqrt{0.2478/111} = 0.0455 (rounded to 4 decimal places).Therefore, the estimated standard error of the sampling distribution of the sample proportion is 0.0455.
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Related Questions
How do you solve this? 6 ( m- 5 ) = 18
Answers
Answer:
M=8
Step-by-step explanation:
(Factoring Algebraic Expressions MC)
Factor −3x2 + 12x.
Answers
The factor is -3x(x - 4) and value of x is 4.
Define Algebraic Expression
An expression that includes variables, constants, and algebraic operations is known as an algebraic expression (addition, subtraction, etc.)
Define Factorization
Factorization or factoring consists of writing a number or another mathematical object as a product of several factors, usually smaller or simpler objects of the same kind.
Given expression,
-3x² + 12x
Take -3x common
⇒ -3x(x - 4)
Now, if you want to find the value of x then write it in standard form like this
-3x(x - 4) = 0
Now, find x
x - 4 = 0
x = 4
Hence, the factor is -3x(x - 4) and value of x is 4.
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a coin is flipped 25 times, and we would like to know the probability that 15 or more of those flips are heads side up. is it geometric distribution a coin is flipped 25 times, and we would like to know the probability that 15 or more of those flips are heads side up. is it geometric distribution
Answers
The probability for each k value is from 15 to 25 and sum them up to get the final probability.
The situation you described is not a geometric distribution. Instead, it follows a binomial distribution. A binomial distribution is appropriate here because we have a fixed number of trials (25 coin flips), each trial has two outcomes (heads or tails), and the probability of success (getting heads) remains constant throughout the trials.
To calculate the probability of getting 15 or more heads in 25 coin flips, you can use the binomial formula:
\(P(X = k) = C(n, k) * p^k * (1-p)^{(n-k)}\)
where n is the number of trials (25), k is the number of successful outcomes (15 or more), p is the probability of success (0.5 for a fair coin), and C(n, k) represents the number of combinations of n items taken k at a time.
You'll need to calculate the probability for each k value from 15 to 25 and sum them up to get the final probability.
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A wheelchair access ramp has an angle elevation of 23 degrees. If the ramp reaches to the top of a 23 inch high porch, how long is the ramp.
Answers
Answer: 5 ft or 60 inches long
Simplify the expression if possible 4^3 × 4^5 and write you answer as a power ( using exponents )
Answers
Answer:
4^8
Step-by-step explanation:
If you are multiplying two bases that are the same with different exponents, the exponents get added and the base stays the same:
\(x^a*x^b=x^{a+b}\\\\4^3*4^5=4^{3+5}\\\\4^3*4^5=4^8\)
Therefore, 4^3 * 4^5 = 4^8
Drag the tiles to the correct boxes to complete the pairs. Match each ratio with its simplest form.
3:1
2:3
1:3
3:4
6:7
9:7
21:28
96:32
22:33
12:36
72:56
54: 63
Answers
Answer:
ll
Step-by-step explanation:
Given the two angle measurements, what is the value of y?
Answers
Answer:
y = 26
Step-by-step explanation:
48 = (1/2)(70 + y)
70 + y = 96
y = 26
Use the Rational Zeros Theorem to list all possible zeros of the function below.
f(x) = 11x³ 2x² + x + 10.
-
[Enter all possible zeros predicted by the Rational Zero Theorem individually and separated by commas
(1,-1,-1/2,1/2,etc.) Note: You do not need to factor the polynomial.]
Answers
The all possible zeros predicted by the Rational Zero Theorem individually and separated by commas are ±1/1, ±1/11, ±2, ±2/11, ±5, ±5/11, ±10, ±10/11.
P(x) = 11x³ + 2x² + x + 10
The factors of the constant term 10 is ±1, ±2, ±5, ±10 (=p)
The factors of leading coefficient are ±1, ±11 (= q)
The possible rational zeros are p/q : ±1/1, ±1/11, ±2/1, ±2/11, ±5/1, ±5/11, ±10/1, ±10/11.
After simplification the possible roots are ±1/1, ±1/11, ±2, ±2/11, ±5, ±5/11, ±10, ±10/11.
Therefore, ±1/1, ±1/11, ±2, ±2/11, ±5, ±5/11, ±10, ±10/11. are the all possible zeros predicted by the Rational Zero Theorem individually and separated by commas.
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Complete the steps to calculate the density of the steel. Calculate the volume of the prism. Recall that the area of a hexagon is One-half times the apothem times the perimeter. V = cm3 Calculate the volume of the cylinder. Round to the nearest hundredth. V = cm3 Find the volume of the composite figure. V = cm3 Calculate the density by dividing the mass by the volume. D = g/cm3.
Answers
Answer:
(A) ✔ 0.45
(B) ✔ 0.06
(C) ✔ 0.39
(D) ✔ 7.77
Step-by-step explanation:
Got it right, hope this helps!
Use the unit circle to find the value of sin(-90)
Answers
Answer:
Step-by-step explanation:
sin (-90*) = -sin (90*)
...
sin = y
...
-sin(90*) = -1
PLZ HELP ASAP.....Your dad is researching landscaping companies to come put new mulch out for the year. The first company charges $100 just to come out, plus $10 per bag of mulch, m, needed. The second company doesn’t charge to come out but charges $30 per bag of mulch. After how many bags of mulch will the total cost of each company be the same?
Answers
Answer: After 5 bags of mulch, the cost for both companies will be the same.
Step-by-step explanation:
The cost for Company can be represented by the equation: y= 10m+100
The cost for Company B can be represented by the equation: y= 30m
To find the amount of mulch, their cost needs to be the same, I will solve for m
10m+100=30m
-10m 10m
100=20m
Divide both side by 20
100/20=20m/20
5=m or m=5
So after 5 bags of mulch, the total cost for both companies is the same.
10/3 is equal to 3 1/3
Answers
Thus, 10/3 in a mixed fraction is 3 1/3.
pls help
what is the surface area of this triangular prism in square units
Answers
What are your answer choices?
4x + 5y = -10
4x + 3y = -22
Solve by using the method of elimination
Answers
Y = 6
Step by step:
*is in picture*
Answer:
y=6. &. x = -10
Step-by-step explanation:
if 4x + 5y = -10
then 4x = -10 -5y. ---------->(1)
if 4x + 3y = -22
then 4x = -22 -3y. ------------>(2)
from equation (1) & (2) :
then -10 -5y = -22 -3y
then 22 -10 = 5y -3y
12 = 2y
then y=6
substituting in (1) or (2):
then. x= -10
I needdd help PLEASEEE!!!! Which transformation would take Figure A to Figure B?
Answers
Answer:
a reflection over the line y= -x
clients with a quickbooks online plus subscription can create 400 ungrouped tags and 1000 grouped tags distributed among up to 40 tag answer
Answers
Clients with a QuickBooks Online Plus subscription have the ability to create a total of 400 ungrouped tags and 1000 grouped tags, which can be distributed among up to 40 tag categories.
QuickBooks Online Plus offers users the flexibility to categorize transactions using tags. Tags are a way to organize and track transactions based on specific criteria or categories. There are two types of tags available: ungrouped tags and grouped tags.
With a QuickBooks Online Plus subscription, clients can create a maximum of 400 ungrouped tags. These tags can be assigned to individual transactions to provide additional information or categorization. Clients can create up to 40 tag categories and distribute the 1000 grouped tags among these categories.
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Eighteen is equal to twice what number
Answers
Answer:
9
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
9
Find the distance between the points (-1,-8) and (-3,-2). Round your answer to the nearest hundredth.
Answers
Answer:
i dont know
Step-by-step explanation:
i dont know
Find the x−and y−intercepts. −2x − 5y = 20
Answers
Answer:
X=10, Y=4
Step-by-step explanation:
Along the y-axis, x = 0.
2(0) + 5y = 20
5y = 20
y = 4
Your y-intercept is at (0,4).
Along the x-axis, y = 0
2x + 5(0) = 20
2x = 20
x = 10
Your x-intercept is at (10,0).
Answer:
-2x-5y=20 (if x= 2 )
\( - 2 \times 5 - 5 \times y = 20 \)
\( - 20 - 5 \times y = 20\)
\( - 5 \times y = 40\)
\(y = 8\)
-2x+5y=7
2x-5y=-7 What is the solution?
Answers
add 2x to both sides:
5y=2x+7
Divide everything by 5 to get y by itself:
y = 2/5x+7/5
————————————
2x-5y=-7
Subtract 2x from both sides
-5y=-2x-7
Divid by -5 to get y by itself
y=2/5x+7/5
Problem 3 (40 points) Let TEC(C) be given by T(21, 22-23) =(22+2+23, 222 +223, 23) (i) (10 points) Find all eigenvalues and their corresponding eigenspaces. (ii) (5 points) Is T diagonalizable? Explain your answer briefly. (iii) (10 points) Write generalized eigenspaces of T for each eigenvalue. (v) (5 points) Write the (algebraic) multiplicity of the cach eigenvalue. What is the character- istic polynomial of T? (iv) (5 points) Find a block diagonal matrix representation of T. (iv) (5 points) Find the minimal polynomial of T.
Answers
To find the eigenvalues and eigenspaces of the linear transformation T, we need to solve the characteristic equation det(T - λI) = 0, where λ is the eigenvalue and I is the identity matrix.
The characteristic equation for T is:
det(T - λI) = det([[22+2+23-λ, 222, 23],
[0, 22+2+23-λ, 222],
[0, 0, 23-λ]])
Simplifying the determinant equation, we have:
(22+2+23-λ)((22+2+23-λ)(23-λ) - (222)(222)) = 0 Solving this equation will give us the eigenvalues of T. Once we have the eigenvalues, we can find the eigenspaces by solving the equation (T - λI)v = 0, where v is a non-zero vector.
(ii) T is diagonalizable if and only if it has n linearly independent eigenvectors, where n is the dimension of the matrix. To determine if T is diagonalizable, we need to check if the algebraic multiplicity of each eigenvalue equals its geometric multiplicity. If they are equal for all eigenvalues, then T is diagonalizable.
(iii) The generalized eigenspaces of T for each eigenvalue can be found by solving the equation (T - λI)^k v = 0, where k is the minimum power required for the equation to be satisfied.
(iv) The algebraic multiplicity of an eigenvalue is the number of times it appears as a root of the characteristic polynomial. The characteristic polynomial of T can be obtained by factoring the characteristic equation.
(v) To find a block diagonal matrix representation of T, we need to find a basis for each eigenspace and construct a matrix with those basis vectors as columns. (vi) The minimal polynomial of T is the monic polynomial of lowest degree that satisfies m(T) = 0, where m(T) is the polynomial evaluated at T and gives the zero matrix. It can be found by finding the irreducible factors of the characteristic polynomial and selecting the one with the smallest degree. Note: Since the given information involves specific calculations and matrix operations, it is not possible to provide the exact values and calculations within given word limit.
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Help!
What is one and sixty-seven hundredths added to fifteen and nine tenths?
Answers
the percentage of boys who play varsity soccer is ✔ less than the percentage of girls who play varsity soccer. the proportion of boys who play freshman b-ball is ✔ greater than the proportion of girls who play freshman b-ball. the percentage of boys who play varsity tennis is ✔ the same as the number of girls who play varsity tennis.
Answers
There are variations in the participation prices of boys and girls across unique sports, with boys having decreased representation in varsity soccer, better representation in freshman basketball, and identical illustration in varsity tennis compared to ladies.
Based on the given statements:
The percentage of boys who play varsity soccer is much less than the share of ladies who play varsity football.
The share of boys who play freshman basketball is extra than the share of girls who play freshman basketball.
The percentage of boys who play varsity tennis is the same as the variety of women who play varsity tennis.
We can finish subsequent:
Boys have a lower representation in varsity football as compared to ladies.
Boys have a higher representation in freshman basketball in comparison to ladies.
The percentage of boys playing varsity tennis is identical to the proportion of women playing varsity tennis.
These statements suggest differences in participation fees and proportions between boys and women in unique sports activities.
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The correct question is:
"The percentage of boys who play varsity soccer is ✔ less than the percentage of girls who play varsity soccer. the proportion of boys who play freshman b-ball is ✔ greater than the proportion of girls who play freshman b-ball. the percentage of boys who play varsity tennis is ✔ the same as the number of girls who play varsity tennis.
What can you conclude from the above statements?"
Help me out hhhhhhhjjnjnfd
Answers
since its the same you will have to multiple it all to get the answer
Will Mark Brainliest
Answers
Answer:
3.3
Step-by-step explanation:
it is the right anwer baby
The zoo needs to replace some of the railroad tracks that support their train ride. The total length of the track is 500 feet,
and there are three sections that need to be replaced. These sections measure 61, 83, and 63 feet. How much of the zoo
railroad track does not need to be replaced?
Answers
Answer:
293 feet.
Step-by-step explanation:
Their track is 500 feet, and there are three sections. Add these sections(61+83+63=207) and subtract from the total(500-207=293)
Ms. Watson's recipe uses
cup of milk to make 12 biscuits.
How many cups of milk will be used to make 36 biscuits?
Answers
Answer: I think u have to take away 12 from 36
Answer:
she will use 3 cups of milk
because 12 divided by 3 equals 12
Step-by-step explanation:
two soccer players are warming up by kicking soccer balls at a goalie. the two players are located 10 yards apart, and the angle from each player to the goalie is 64° and 75°, respectively. what is the distance from the farthest soccer player to the goalie?
Answers
Using the law of sines, it is found that the distance from the farthest soccer player to the goalie is 14.723 yards.
Given,
The distance between the two players = 10yards
The angle from each player to the goalie is 64° and 75°, respectively
We have to find,
the distance from the farthest soccer player to the goalie.
In this problem, considering that the sum of the internal angles of a triangle is of 180º, the angle that the goalie makes with the players is given by:
∠A = 180-(∠B+∠C)
∠A = 41°
Using Sine rule
AC/Sin B = BC / Sin A
AC = 10yrd*Sin75°/Sin41°
AC = 14.723 yards
The farthest distance is of 14.723 yards.
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A skateboard was originally priced at $53.00. It is on sale for 15% off. What is the sale price of the skateboard?
Answers
Answer:
STEP BYy-step explanation:
I need help with this to! When i get the answer ill let ya know
We have given that skateboard was originally priced at $53.00.
It is on sale for 15% off.
We have to determine the sale price of the skateboard.
The discount is 15%.
So we have to find 15% of $53.
What is the method to converting the percentage into desimal ?
Divide the percentage by 100 so we will get the the desimal form of percentage.
convert 15% into desimal
\(\frac{15}{100}=0.15\)
Multiply 0.15 by original price,
\(0.15\times 53=7.95\)
The original price discounted by this amount
Therfore he save $7.95
Sale price=53$-7.95=45.05
Therefore we get the salling price is $45.05.
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Como se resolvería este ejercicio paso a paso?
{x − 1 ≤ x ≤ 15}
Answers
Answer:
which language it is ?i can't understand it
Step-by-step explanation:
please ask in english language
x greater than equal to x - 1
x less than equal to 15
x less than equal to 15
the solution is (negative infinity sign, positive 15]
the answer in alternative form is x less than equal to 15