In response to nutrition concerns raised last year about food served in school cafeterias, the Smallville School District entered into a one-year contract with the Healthy Alternative Meals (HAM) company. Under this contract, the company plans and prepares meals for 2,500 elementary, middle, and high school students, with a focus on good nutrition. The school administration would like to survey the students in the district to estimate the proportion of students who are satisfied with the food under this contract. Two sampling plans for selecting the students to be surveyed are under consideration by the administration. One plan is to take a simple random sample of students in the district and then survey those students. The other plan is to take a stratified random sample of students in the district and then survey those students. (a) Describe a simple random sampling procedure that the administrators could use to select 200 students from the 2,500 students in the district. (b) If a stratified random sampling procedure is used, give one example of an effective variable on which to stratify in this survey. Explain your reasoning>

Answers

Answer 1

The students corresponding to those 200 numbers would beasked to participate in the survey.

What is corresponding ?

Having or participating in the same relationship (such as kind, degree, position, correspondence, or function) especially with regard to the same or like wholes (such as geometric figures or sets) corresponding parts of similar triangles. : related, accompanying.

Have given,

a) The administrators could number an alphabetical list of students from 1 to 2,500.Then use a random number generator from a calculator or computer to generate 200 unique random numbers from 1 to2,500.(if you don’t say “unique”, then say “ignoring repeats”)The students corresponding to those 200 numbers would beasked to participate in the survey.

b) One advantage is that stratified random sampling guarantees that each of the school-level strata will have some representation, because it is possible that a simple random sample would miss one or more of the strata completely.(NOTE: It is NOT sufficient to say that a stratified sample “makes it MORELIKELY that all school-levels are represented in the sample”… the student must state that stratifying by school level GUARANTEES or ENSURES that all school levels are represented in the sample.)

The students corresponding to those 200 numbers would beasked to participate in the survey.

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Related Questions

Si una mujer tiene en su closet 7 camisas,3 pares de zapatos y 4 pantalones ¿de cuántas formas se puede vestir?

Answers

Answer:

14 veces  Step-by-step explanation:

A group of 540 students are required to take a test. Of these,
495 actually take the test, and 45 are absent that day.
(i) Write down the ratio of the number of students who take the test
to the number of students who are absent. Simplify this ratio as far
as possible.

Answers

11:1

495/45= 11
So it simplified to 11:1 from 495/45

The exterior angles of a pentagon have measures of 65 degree 86degree 104 degree 2x and 3x find the value of x

Answers

Answer:

21

Step-by-step explanation:

65+86+104+2x+3x = 360

5x = 360-65-86-104

= 105

x =21

Quina is cooking fish for a group of travelers. Quina has 78 huge fish, and each fish can feed 3 travelers.

How many travelers can Quina feed?

Choose 1 answer:

(Choice A)

Quina can feed 26 travelers, because 78÷3=26.

(Choice B)

Quina can feed 22 travelers, because 78÷3=22.

(Choice C)

Quina can feed 234 travelers, because 78×3=234.

Answers

It’s the last one - 234

for a certain company, the cost function for producing x items is C(x)=40x+150 and the revenue function for selling x items is R(x)=-0.5(×-110)^2+6,050. the maximum capacity of the company is 160 items.​

Answers

Answer  :

Step-by-step explaation:

c(80) =40x80 +150 =3350  üretim için 80  parçanın maliyeti

satış için ise : R(80) 0.5(80-110)^2+6,050 =  456

3350-456=2983.95 kar ederler  

For what value of m does f( m) = g( m)

Answers

Answer:

Pts

Step-by-step explanation:

Need pts

I will give Brainly plzzz ASAP

Answers

Answer:

Im pretty sure the answer would be 6

Step-by-step explanation:

Just take 42 and divide by 7 to get x

Answer:

did you finish this already

Please help me fast i need help please

Answers

Answer:

30

Step-by-step explanation:

because I find the lcm for each number

FINAL PROJECT 2
Fill in the missing areas for Claire's garden table:
x 1 2 3 4 5
y 14 13 12 11 10
A 50

If you have the answers for this one please list all of them below with the answer for the table (if you took the test)

Answers

Answer:

[tex]\begin{array}{cccccc}x & {1} & {2} & {3} & {4} & {5} \ \\ y & {14} & {13} & {12} & {11} & {10} \ \\ A & {14} & {26} & {36} & {44} & {50}\ \end{array}[/tex]

Step-by-step explanation:

Given

[tex]\begin{array}{cccccc}x & {1} & {2} & {3} & {4} & {5} \ \\ y & {14} & {13} & {12} & {11} & {10} \ \\ A & { } & { } & { } & { } & {50}\ \end{array}[/tex]

Required

Complete the table of Areas

Using the complete column:

Where x = 5, y = 10 and A = 50,

We can deduce that, the area is calculated as:

[tex]A = 5 * 10 = 50[/tex]

i.e.

[tex]A = x * y[/tex]

So, for other values of x and y, the area is calculated as thus:

[tex]x = 1; y = 14[/tex]

[tex]A = 1 * 14 = 14[/tex]

[tex]x = 2; y = 13[/tex]

[tex]A = 2 * 13 = 26[/tex]

[tex]x = 3; y=12[/tex]

[tex]A = 3 * 12 = 36[/tex]

[tex]x =4;y =11[/tex]

[tex]A = 4 * 11 = 44[/tex]

So, the complete table is:

[tex]\begin{array}{cccccc}x & {1} & {2} & {3} & {4} & {5} \ \\ y & {14} & {13} & {12} & {11} & {10} \ \\ A & {14} & {26} & {36} & {44} & {50}\ \end{array}[/tex]

the expression (x - 0.35x) represents 35% off the cost of an item x. how is this equivalent to multiplying x by 0.65?
show full work for brainliest

Answers

Answer:

Step-by-step explanation:

x-0.35x = x(1-0.35) = x(0.65)

Alexis has a bag of starbursts. After giving half of the candy to her best friend, she ate 6 starbursts.
Now, she only has 10 starbursts left. How many starbursts did Alexis start with?

Answers

Answer: 22

Step-by-step explanation:

Find the work W done by a force of 3 pounds acting in the direction 60° to the horizontal in moving an object 4ft (0,0) to (4,0)

Answers

Answer:

[tex]\frac{3}{2}i + \frac{3\sqrt{3} }{2}[/tex]j

Step-by-step explanation:

The work done by the force in moving the object is 10 ft-lb.

What is force?

Force is an influence or interaction that can change the motion or shape of an object with mass.

It can be described as a push or a pull that has both magnitude and direction.

Force is equal to the product of the mass of the object and its acceleration.

Given,

F = 3 p

d = 4 ft

The work formula:  

W = F x d

W = 4 p x cos 60° x 5 ft

= 10 ft lb.

Hence, the work done by the force in moving the object is 10 ft-lb.

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The total cost of a pair of shoes and a shirt was $81.59. If the price of the pair of shoes was $0.91 less than the shirt, what was the price of the pair of shoes? Express your answer as a simplified fraction or a decimal rounded to two places.

Answers

Answer:

$40.34

Step-by-step explanation:

x+(x+.91)=81.59

2x+.91=81.59

2x=80.68

x=40.34

How did you find the length of the a sides?

Answers

Answer:

So If This Is Area You Take The Top Number And Subtract It By The Bottom Number To Get the Sides

Step-by-step explanation:

The ideal output of a particular oil-rig in the Mexican Gulf is at least 2000 barrels per day. If the output is lesser than that, the foreman raises an red flag at the end of the day. Old Joe the Retired Statistician watches from the shore every day. After 28 days, the red flag was raised on 16 of those days. Could Joe conclude that the oil-rig is operating at a non-ideal condition most of the time

Answers

Answer:

Mexican Gulf Output of a Oil-Rig

Based on 57% red flag days, Joe, the retired statistician, who watches from the shore for the red flag every day, cannot conclude that the oil-rig is operating at a non-ideal condition most of the time, but more of the time.

Step-by-step explanation:

Ideal output of a particular oil-rig, at least = 2,000 barrels per day

When output is lesser than 2,000, a red flag is raised by the foreman

Number of days counted = 28

Number of days when red flag was raised = 16

Proportion of days when the red flag was raised = 16/28

= 0.57

or 57%

Auto racing is a sport enjoyed by many people. In each race, there may be up to 25 cars on the racetrack. Which of the following is NOT an example of a quantitative variable you might use to describe a car in a race?

the brand of car
the number of tires used
the number of laps completed
the average speed (in mpg)

Answers

Answer:

A is correct i assume

Step-by-step explanation:

Answer:

The correct answer is A

Step-by-step explanation:

The person above me assumed correctly lol

The graph shows the profit, y, of a community fundraiser, with respect to the number
of tickets sold, x

Use the graph to determine the y-intercept and what it represents.

The y-intercept - -700 and represents the initial amount of expenses

The y-intercept - 35 and represents the initial amount of expenses

The y-intercept - 35 and represents the number of tickets sold

The y-intercept = -700 and represents the number of tickets sold

Answers

Answer:

A

Step-by-step explanation:

it rapresent the initial amount of expenses. the ticket sold were 0, but the profit was negative

Answer:

A

Step-by-step explanation:

Janae solved the equation 3.67 = c − 2.13 , and found the value for c. Janae's solution was c =1.54 Do you agree or disagree with her solution. Explain. Show your work.

Answers

Answer:

Solution;

given equation : 3.67 = c - 2.13

On solving equation, we get

c = 3.67 +2.13

c = 5.8

Hence, Janae solution is incorrect. So I disagree.

What is the length of the altitude of the equilateral triangle below?
30
6V3
63
60" 90
60"
Зүз
33
О
А. 81
В. 9
ОО
С. 33
D. 08
ОО
Е. З
о
E. 93

Answers

Answer:

its 63.

Step-by-step explanation:

The length of the altitude of the equilateral triangle is a√3/4 units.

What is a triangle?A triangle is a two - dimensional figure with three sides and three angles.The sum of the angles of the triangle is equal to 180 degrees.∠A + ∠B + ∠C = 180°

Given is to find the length of the altitude of the equilateral triangle.

An equilateral triangle is a triangle whose all sides are equal. All the angles of a given equilateral triangle are 60 degrees.

The length of the altitude of the equilateral triangle can be found out using the Pythagoras theorem.

Draw a median from one vertex on the opposite side to that vertex and apply Pythagoras theorem to one of the right triangle.

We can find the length of the altitude to be -

L = a√3/4

Therefore, the length of the altitude of the equilateral triangle is a√3/4 units.

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the question is invluded on the picture​

Answers

Answer:

a is the right answer Alexis

Step-by-step explanation:

What is 6^4written in expanded form?
4+4+4+4+4+4
4.4.4.4.4.4
6+6+6+6
6.6.6.6

Answers

Answer:

6 · 6 · 6 · 6

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

This is because the 4 is an exponent or a power.

This makes the 6 in this case multiply itself 4 times.

HOPE THIS HELPS

helppppppppp i m on my test

Answers

3x+75=180( cause supplementary angles)
-75 -75
3x=105
3x/3= 105/3
x=35

tonya earned $5.00 she put half of the money into savings and kept the rest to spend.she bought a toy for $2.00.how much spending money dose tonya have left?

Answers

Answer:

50 cents

Step-by-step explanation:

half of 5.00$ is 2.50$

Please Evaluate this expression...4a-2b for a-5 and b=3

Answers

Answer:

14

Step-by-step explanation:

(4*5)+(2*3)

20-6

14.

What is the absolute value of 8.15

Answers

Answer:

pretty sure its 8.15

Step-by-step explanation:

a circular stained glass window frame with a diameter 20 inches is divided into 8 congruent find the area of 3 of the 8 panes of glass

Answers

Answer:

it would be 45

Step-by-step explanation:

Please answer number 7 I’ll give brainliest

Answers

Answer:

A $48.15

Step-by-step explanation:

7% of $45 is 3.15 so you would add 3.15 to $45 to get $48.15

The answer is C
45*0.7+45= 76.5%

can you please help i need it today

Answers

She should use the $10 off coupon because she saves more money.

PLEASEEEEE HELP MEEEEEE

Answers

Answer:

1. VW = 22

2. x = 87

Step-by-step explanation:

Question 1:

SU = 11 (given)

SU = ½(VW) => midsegment theorem

11 = ½(VW) => Substitution

Multiply both sides by 2

2*11 = VW

VW = 22

Question 2:

UV = x + 13

RT = x - 37

RT = ½(UV) => Midsegment Theorem

x - 37 = ½(x + 13) => Substitution

Multiply both sides by 2

2(x - 37) = x + 13

2x - 74 = x + 13

2x - 74 + 74 = x + 13 + 74

2x = x + 87

2x - x = x + 87 - x

x = 87

solve the inequality and specify the answer
1-3x [tex]\leq[/tex]0
Interval notation

Answers

Step-by-step explanation:

hope it helps

see attached

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