« previous next »

Author Question: The .95 confidence interval for a population proportion based on a sample of n cases ranged from .40 ... (Read 48 times)

laurencescou

  • Hero Member
  • *****
  • Posts: 593
on: Jun 20, 2018
The .95 confidence interval for a population proportion based on a sample of n cases ranged from .40 to .56 . If the sample proportion was unchanged, but the sample size was increased to 4n, the .95 confidence interval would be about
 
  a. .32 to .64 c. .44 to .52.
  b. .36 to .60 d. .46 to .50.

Question 2

Explain how the complexity of classroom teaching and learning affects research and efforts to apply that research.
 
  What will be an ideal response?


al

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jun 20, 2018
Answer to Question 1

C

Answer to Question 2

As David Berliner has argued, schools and classrooms differ from each other in a number of ways, including quality and quantity of personnel, teaching methods, budget, leadership, and community support. In addition, cognitive and effective outcomes of schooling are affected by complex interactions among such factors as student characteristics, teacher characteristics, curriculum materials, socioeconomic status of the community, and peer influences. The result of all this complexity is that teaching methods and programs that work the same way for a broad sample of teachers and students in different school districts are few and far between.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Anatomy of the Lotka-Volterra equations for predator-prey population growth. Anatomy of the Lotka-Volterra equations for predator-prey population growth.
Teaching methods based on patients developmental capacity Teaching methods based on patients developmental capacity
The proportion of men and women with elevated blood pressure or taking hypertension medication incre The proportion of men and women with elevated blood pressure or taking hypertension medication incre
Sample Problem from Raven’s Progressive Matrices Sample Problem from Raven’s Progressive Matrices
The decay rate of a radioactive sample decreases from 175 kBq to 12.4 kBq in 18.3 s. What is ... The decay rate of a radioactive sample decreases from 175 kBq to 12.4 kBq in 18.3 s. What is ...
Human Population Growth Human Population Growth
Video: Olfaction. or the sense of smell

For a complete list of videos, visit our video library