The mean age of all 2530 students at a small college is 22.6 years with a standard deviation of 3.6 years, and the distribution is right-skewed. A random sample of 5 students' ages is obtained, and the mean is 23.0 with a standard deviation of 3.1 years. Complete parts (a) through (c) below . a Find . . S. and x=0 (Type integers or decimals. Do not round) b. Isa parameter or a statistic? The value of his a because it is found from the c. Are the conditions for using the CLT (Central Limit Theorem) fulfilled? Select all that apply. A. No, because the large sample condition is not satisfied B. No, because the big population condition is not satisfied C. No, because the random sample and independence condition is not satisfied. D. Yes, all the conditions for using the CLT are fulfilled. What would be the shape of the approximate sampling distribution of many means, each from a sample of 5 students? Normal Right-skewed Left-skewed The shape cannot be determined.

Answers

Answer 1

The standard deviation S for the sampling distribution of the sample mean, is calculated as follows:S = σ/√nwhere σ is the population standard deviation and n is the sample size. Thus, substituting the values of σ = 3.6 and n = 5, we get;S = 3.6/√5S = 1.612The value of x = 0 since we are looking for the standard deviation of the sampling distribution of the sample mean. Therefore, the answer is S = 1.612 and x = 0.

The standard deviation S is a parameter because it is calculated using population values, in this case, σ. On the other hand, the mean of the sample is a statistic because it is calculated from the sample data.(c) Since the sample size n is less than 30, the conditions for using the Central Limit Theorem are not fulfilled. The Central Limit Theorem requires a sample size greater than or equal to 30.

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Related Questions

Help!! Write the following as an inequality.

x is less than 9 and greater than or equal to 5

Use x only once in your inequality.

Answers

The answer to the given question is 5≤x<9.

What are open interval and closed interval ?

Open interval do not include the given points where close intervals include the given points.

According to the given question

x is less than 9 and greater than or equal to 5

5≤x<9

There are 4 types of inequalities lees than, greater than, less than or equal to, greater than or equal to.

Suppose a is greater than 2 and less than 6 this can be written as

2<x<6.

another example a is greater than or equal to 2 and less than or equal to 6 then this can be written as

2≤x≤6.

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John works in a car dealership selling new and used cars, He is extremely busy during major holidays selling as many cars as possible. The store’s motto is “Work Hard Earn More”. During the last holiday period, John sold $150,000 worth of vehicles. His commission is 15% of the first $100,000 and 10% on the remaining balance. How much commission did he earn on his total sales?

Answers

$20,000

15% of 100,000$ is 15,000$

10% of the remaining 50,000$ is 5,000$

Can you pls help and also with lots of points!!!!

Can you pls help and also with lots of points!!!!

Answers

Answer:

i can help you but please can you send full questions

Are the lines of equations
x = −2 + 2t, y = −6, z = 2 + 6t and
x=−1+t,y=1+t,z=t, t∈ R, perpendicular to each other?

Answers

The given lines of equations are not perpendicular to each other. Therefore, `θ = cos⁻¹(8/(4√10))` which is approximately `28.07°`.Since `θ ≠ 90°`, the given lines of equations are not perpendicular to each other.

Given lines of equations:

x = −2 + 2t, y = −6, z = 2 + 6tx=−1+t,y=1+t,z=t, t∈ R.

Firstly, we need to find the direction vectors of the two given lines.For the first equation,Let `t=1`, then the point on the line is `(-2+2(1), -6, 2+6(1))`=`(0, -6, 8)`.

Let `t=2`, then the point on the line is

\(`(-2+2(2), -6, 2+6(2))`=`(2, -6,\)14)`.T

herefore, direction vector `

\(v1 = (2, -6, 14)-(0, -6, 8)`=`(2, 0, 6)`\)

For the second equation, direction vector \(`v2 = (1, 1, 1)`.\\\)

Let the angle between the direction vectors `v1` and `v2` be `θ`.

Then, we know that `v1 • v2 = |v1||v2| cosθ`, where `•` represents the dot product of the vectors, and `|.|` represents the magnitude of the vector.

Thus, we have:

(2, 0, 6) • (1, 1, 1) = √(2²+0²+6²)√(1²+1²+1²) cosθ

=> 8 = √40√3 cosθ=> cosθ = 8/(4√10)

Therefore,

`θ = cos⁻¹(8/(4√10))`

which is approximately `28.07°`.

Since `θ ≠ 90°`, the given lines of equations are not perpendicular to each other.

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What is the value of x in the equation - - *?
0 32
18
18
0 32

What is the value of x in the equation - - *?0 3218180 32

Answers

Answer:

x= 18

Step-by-step explanation:

Which expressions have exactly two factors? Choose ALL that apply.
A) a+ 7
B)4•n•n
C)3(b-1)
D)xy
E)m•m+8
F)2•2•2•2•2

Answers

Answer: The answer is F.

Step-by-step explanation: It’s F because the number would be multiplied equally because all of the number are multiplied by 2. The rest of them either have variables or variables with numbers in them, which looks kind of funky, so F is the answer. I hope you get it right :). Sorry, if I was late for the reply and if you already figured it out… :(.

Write an equation to represent the function described by this thesis statement “The circumference C of a circle is found by multiplying 2(pie symbol) times the radius r.”

Answers

Answer:

I got that C = 2(pi symbol)(r)


Consider the following joint distribution for two discrete
random variables X and Y. Joint Probability Y = 1 Y = 2 X = 0 0.15
0.22 X = 1 0.43 0.20 (a) What is the joint probability P(X=0,Y=2)?
(Round

Answers

The joint probability P(X=0, Y=2) calculated by given joint distribution table. From the table, we see that the value in the intersection of X=0 and Y=2 is 0.22.So, the joint probability P(X=0, Y=2) is 0.22.

Let's go through the joint distribution table again to calculate the joint probability P(X=0, Y=2).

The table represents the joint probabilities of two discrete random variables, X and Y. The values in the table indicate the probability of each combination of X and Y.

Looking at the table, we find the entry corresponding to X=0 and Y=2. In this case, the value is 0.22.

Therefore, the joint probability P(X=0, Y=2) is 0.22. This means that there is a 22% probability of the event where X takes the value 0 and Y takes the value 2 occurring simultaneously.

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The rain gauge shows 3 centimeters of rainwater.

Which of the equations below gives the height, h, if it rains at a rate of 0.25 centimeters per hour after t hours? Hint: the h is the "y" and the t is replacing "x"


A. h=0.25t+3h is equal to 0 point 2 5 t plus 3

B. h=3t+0.25h is equal to 3 t plus 0 point 2 5

C. t=0.25h+3t is equal to 0 point 2 5 h plus 3

D. t=3h+0.25

Answers

Answer:

h=0.25t+3

Step-by-step explanation:

y=mx+b

y=0.25x+3

replace y with h and x with t

h=0.25t+3

When Alan and Brady stood together on the scale, their total weight was 250 lb.
Brady and Charles were weighed together, and their total weight was 300 lb.
Charles and Damien weighed 280 lb. when they stood on the scale together.
Initially, when Charles, Damien, and Brady all stood on the scale together, it
registered 420 lb. How much does each of the boys weigh?

Answers

Answer:

Alan: 110 lb.

Brady: 140 lb.

Charles: 160 lb.

Damien: 120 lb.

Step-by-step explanation:

Evaluate the expression when, c=7 and x=-2
c-4x

Answers

Answer:

The answer to this expression would be 15

Step-by-step explanation:

(7) - 4(-2) = 7 + 8 = 15

\(\huge\text{Hey there!}\)

\(\huge\boxed{\mathsf{c - 4x}}\\\huge\boxed{\mathsf{\rightarrow 7 - 4(-2)}}\\\huge\boxed{\mathsf{\rightarrow 7 -(-8)}}\\\huge\boxed{\rightarrow{\mathsf{7 + 8}}}\\\huge\boxed{\mathsf{\rightarrow 15}}\\\\\\\\\\\huge\text{Therefore, your answer is: \textsf{15}}\huge\checkmark\\\\\\\\\huge\text{Good luck on your assignment \& enjoy your day!}\\\\\\\huge\boxed{\frak{Amphitrite1040:)}}\)

please help would appreciate so much​

please help would appreciate so much

Answers

How many flowers they buy each time total
5+7=12

How many times they buy flowers
96/12 = 8 times

How many roses? 5 each time for 8 times

5*8 =40

The area of a sector of a circle is given by the equation uppercase A = StartFraction pi r squared uppercase S Over 360 EndFraction, where r is the radius of the circle and S is the angle measure of the sector.

Answers

Answer:360A/pi ^2

Step-by-step explanation:

A beaker has a mass of 129 g. What is the mass of this beaker in kilograms?

Answers

Answer: 0.129 kg

Step-by-step explanation:

A gram to a kilogram can be found by dividing the value of grams by 1000, or multiplying the value by 0.001

Just need help with 6 please

Just need help with 6 please

Answers

Answer:

Congruent, SSS

Step-by-step explanation:

The dashes on the sides of the triangles represent that the corresponding lengths of the triangles are equal in length. Since it is given that all corresponding lengths of the triangles are equivalent, the triangles are congruent by the SSS (side, side, side) test.

Hope this helps :)

Dave bought 8 boxes of chocolate candy and gave 2 boxes to his little brother. if each box has 17 pieces inside it, how many pieces did dave still have?

Answers

Answer:

17×6=102 because he gave 2 boxes to his brother so he have 6 boxes

Solve the system by substitution.
-2x-10y=-2
-4y=x

Answers

maybe xd ad something else please

if the mine winch drum diameter is 6m calculate how far the counterweight will lift for each single rotation of the drum use the formula C=2ttr​

Answers

Answer:

A single rotation accounts for the circumference of the mine winch drum:

from formula:

\(circumference = 2\pi r\)

r » radius.

but r = 2 × diameter.

therefore; radius, r = 2 × 6 = 12 m

\(c = 2 \times 3.14 \times 12 \\ { \underline{ \underline{ \: \: circumference = 75.36 \: m \: \: }}}\)

[ considering π to be 3.14 ]

What is the sum of (x ^ 2 - 3x + 2) and (5x ^ 2 - 3x - 8)

Answers

Answer:

6x^2-6x-6

Step-by-step explanation:

(x^2-3x+2)+(5x^2-3x-8)

x^2+5x^2-3x+(-3x)+2+(-8)

6x^2-3x-3x+2-8

6x^2-6x+2-8

6x^2-6x-6

someone please help. how would this be graphed??

someone please help. how would this be graphed??

Answers

Answer:

See picture

Step-by-step explanation:

someone please help. how would this be graphed??

Find the measure of ∠X

2 problems only and please show work and explain how you got the answer so that way I can understand what you're doing and how to solve the other problems on my work sheet.

Find the measure of X2 problems only and please show work and explain how you got the answer so that

Answers

Answer:

7) 65°8) 25°

Step-by-step explanation:

Question 7

Angle formed by 2 chords is half of the sum of the intercepted arcs

x = 1/2(72° + 58°) = 1/2(130°) = 65°

Question 8

Angle formed by 2 secants is half of the difference of the intercepted arcs

x = 1/2(360° - (130° + 98° + 41°) - 41°) = 1/2(50°) = 25°

Solving each system elimination.

(Help I’ll mark you brainly)

Solving each system elimination. (Help Ill mark you brainly)

Answers

Answer:

1) x=6, y=-6 which is (6,-6) as an ordered pair

3) x=10, y=-1 which is (10,-1) as an ordered pair

Step-by-step explanation:

Question 1:

Solve them like an addition problem:

-4x-2y=-12

4x+8y=-24

________

(-4x+4x)+(-2y+8y)=(-12+-24)

0x+6y=-36

6y=-36

y=-6

Plug value of y into one of the original equations:

4x+8(-6)=-24

4x-48=-24

4x=24

x=6

Question 3:

Solve them like an addition problem:

x-y=11

2x+y=19

_______

(x+2x)+(-y+y)=11+19

3x+0y=30

3x=30

x=10

Plug value of x into one of the original equations:

10-y=11

-y=1

y=-1

Find the missing side. Round your answer to the nearest tenth

Answers

Answer:

700

Step-by-step explanation:

determine the probability of drawing either a queen or a diamond? write your answer as a reduced fraction.

Answers

The probability of drawing either a queen or a diamond is 15/52

How do we calculate the probability?

To determine the probability of drawing either a queen or a diamond, we have to find the sum of the probabilities of drawing a queen and drawing a diamond, then subtract the probability of drawing both a queen and a diamond. This is because the probability of drawing both a queen and a diamond has been added twice when we added the individual probabilities.

Thus, we have:P(queen or diamond) = P(queen) + P(diamond) - P(queen and diamond)

The probability of drawing a queen is 4/52, since there are four queens in a deck of 52 cards. The probability of drawing a diamond is 13/52, since there are 13 diamonds in a deck of 52 cards.

There are two ways to draw a card that is both a queen and a diamond, namely the queen of diamonds and the diamond queen. Thus, the probability of drawing both a queen and a diamond is 2/52. Therefore, P(queen or diamond) = 4/52 + 13/52 - 2/52 = 15/52 = 15/4 = 3.75 As a reduced fraction, this is 15/52.

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Find the product 3/8 x2

Find the product 3/8 x2

Answers

Answer:

3/4

Step-by-step explanation:

  3

(-----)*2 = 3/4

  8

Answer:

3/4

Step-by-step explanation:

1) multiply numerator x numerator

3 x 2 = 6

2) mantain the same denominator

6/8

3) divide numerator and denominator by 2

3/4

A town has a population of 3000 and grows at 2.5% every year. To the nearest tenth of a year, how long will it be until the population will reach 4600?

Answers

It will take the town 21 years 4 months to reach 4600 in population

What is rate?

a rate is a ratio that compares two different quantities which have different units. For example, if we say John types 50 words in a minute, then his rate of typing is 50 words per minute. The word "per" gives a clue that we are dealing with a rate.

initial population = 3000

population increase every year = 2.5% of 3000

which is 2.5/100 x 3000 = 75

let the time taken to reach 4600 be d

increment for d number of years = 75d

Total population after d years is 75d + 3000

so 75d + 3000 = 4600

75d = 4600  - 3000

75d = 1600

d = 1600/75

d = 21.33 years which is 21 years 4 months

In conclusion 21 years 4 months is the time taken for the ton tto get tto 4600

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What is the equivalent radian measure of 540°? One-third radians StartFraction 3 Over pi EndFraction radians StartFraction pi Over 3 EndFraction radians 3 pi radians.

Answers

The equivalent radian measure of 540° is calculated to be using the relation between degree and radian.

what is the relation between radian and degree?

The value of 180° is equivalent to π radian.

π radian= 180°

as we know that

180° = π radian

1° = π/180 radian

540° = 540* π/180

3π radian

therefore, The equivalent radian measure of 540°  is 3π.

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Answer:

d on edge

Step-by-step explanation:

What are the corresponding rectangular coordinates for point Q equals the ordered pair 6 comma 11 times pi over 6 given in polar coordinates?

What are the corresponding rectangular coordinates for point Q equals the ordered pair 6 comma 11 times

Answers

rectangular coordinates and polar coordinates are related to each other by the following relation

\(\begin{cases}x=r\cos \theta \\ y=r\sin \theta\end{cases}\)

On polar coordinates, the first coordinate is the radius and the second the angle. Using this information, we have

\((6,\frac{11\pi}{6})\rightarrow\begin{cases}x=6\cos \frac{11\pi}{6} \\ y=6\sin \frac{11\pi}{6}\end{cases}\)

Solving thiose expressions, we have

\(\begin{cases}x=6\cos \frac{11\pi}{6}=6\cdot(\frac{\sqrt[]{3}}{2})=3\sqrt[]{3} \\ y=6\sin \frac{11\pi}{6}=6\cdot(-\frac{1}{2})=-3\end{cases}\)

Then, the coordinates of the point Q are

\((3\sqrt[]{3},-3)\)

The product of three and a squared number is twice the sum of the number and four.
A. 3x2 = 2(x+4)
B. (3x)2 = 2(x+4)
C. (3x)2 = 2x +4
D. 3x2 = 2x+4

Answers

Answer:

It B option.

Step-by-step explanation:

I hope it's the right answer.

Adi bought a bag for $25 and sold it at a loss of 10%. Find the selling price of the bag.​

Answers

Answer:

The selling price of the bag is $22.5

Step-by-step explanation:

Buying Price = $25,

Selling Price = ?

Since they sold it at a loss of 10%,

So, they sold it for a price 10% less than the buying price,

or at 90% or 0.9 of the buying price,

so,

Selling Price = (0.9)(25) = $22.5

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