1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dafna11 [192]
2 years ago
15

School administrators in Boston want to assess the efficacy of a new reading program they wish to put in place. Therefore, they

randomly assign some schools in the city to institute the new reading program and other schools to remain on the traditional reading program. When performing the analysis to determine whether students using the new reading program perform better, the educators control for socioeconomic status, a variable known to be related to educational outcomes. What kind of analysis have the educators performed
Mathematics
1 answer:
irina [24]2 years ago
6 0

Answer:

The selection of the schools is done by random sampling, the remaining schools are considered as the control and stratified sampling for the selection of students for analysis is considered

Step-by-step explanation:

Based on the scenario, the following key highlights are presented:

  1. The sampling for selection is carried out randomly.
  2. The control group is maintained.
  3. The selection of students for analysis is considered with a specific socio-economic status.

This indicates that the selection of the schools is done by random sampling, the remaining schools are considered as the control and stratified sampling for the selection of students for analysis is considered.

You might be interested in
Each sheet cake requires 3 cups of flour and 2 cups of sugar. If a bakery has 75 cups of flour, how many sheet cakes can be made
m_a_m_a [10]

Answer:

They can make 25 cakes

Step-by-step explanation:

75/3=25

6 0
2 years ago
Assume that the growth rate of a population of ants is proportional to the size of the population at each instant of time. Suppo
Nutka1998 [239]
(1/A)  dA/dt=  C where A is the population of ants and C is a constant
ln(A) = C*t + C1 where C1 is another constant that comes out of integration and t is time in days.
Plugging in: at t=0, A= 100 so C1 = ln(100) = 4.605
at t=3, A=230 so ln(230) = 3*C +4.605 so C = 0.278
Final equation:
ln(A) = 0.278t + 4.605
or:
A = exp(0.278t + 4.605)
After 14 days, A = exp(0.278*14 + 4.605) = 4875.2
7 0
3 years ago
Part 2: Solve the following word problem. Show all work to receive full credit..
lys-0071 [83]

The numerical representation and final elevation of the fish relative to sea level are :

  • Final position = -13.52 + 7.8
  • Final position = - 5.72

<u>Given the Parameters</u> :

Initial depth of fish = - 13.52

Change in elevation of fish = 7.8 feets

Positions below sea level are represented as negative values (-) ;

Hence, initial position of fish = - 13.52

Change in position = Rise in depth of 7.8 feets

<u>The numerical representation of the final position of the </u><u>fish</u><u> </u><u>can</u><u> </u><u>be</u><u> written thus</u> :

  • Final position = Initial position + change in position

  • Final position = - 13.52 + 7.8

Hence, the final position of the fish will be :

  • Final position of fish = -13.52 + 7.8 = - 5.72

Learn more : brainly.com/question/18109354

6 0
2 years ago
Read 2 more answers
What is the verbal expression for 6f^2+5f
pychu [463]

Answer:

f = 5/6 = 0.833  or f = 0

Step-by-step explanation:

5 0
2 years ago
[URGENT]
Blizzard [7]

When you write URGENT the Brainly cops think you may be taking a test.

y = ax² + c thru (-1,4) and (0,8)

Substituting in the coordinates of each point for x and y gives two equations:

4 = a  (-1)² + c

8 = a (0²) + c = c

From the second one we see c=8.  Substituting into the first one,

4= a + 8

a = 4-8 = -4

Answer: a=-4, c=8

Check:

f(x) = -4x² + 8

f(0) = 8, good

f(-1) = -4(1) + 8 = 4, good

5 0
3 years ago
Other questions:
  • A surveyor is standing 50 feet from the base of a building. The angle of elevation to the top of the building is 60°. Approximat
    15·1 answer
  • In circle K, what is the value of x?
    9·1 answer
  • The volume of
    15·2 answers
  • A praying mantis can grow up to 15 centimeters long. How long is this in millimeters
    8·2 answers
  • help please<br> Answer options:<br><br> A. 18.86<br> B. 120<br> C. 13.37<br> D. 6.43
    15·1 answer
  • At work, you are calculating the cost of insulation for a customer. The customer would like to install his own insulation in an
    5·1 answer
  • What is the percent of change from 50 to 46?
    14·1 answer
  • 2k - 3(4 - k) = 3k + 4<br> whats k?
    13·1 answer
  • Plz help with both questions (no link plz) 15 point and will make brainly
    7·1 answer
  • Solve the following proportion for v
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!