Statistics
posted by Denise
A school experiments with two teaching approaches for mathematics. In one classroom the material is taught using lectures only. In the other classroom lectures are mixed in with the use of manipulatives, computers, and collaborative activities. Do the data below support the claim that students in the classroom with multiple techniques do better. (a=.05)
Lecturen=20x=76.0s=2.1
Multiplen=32x=88.5s=0.4
Help

PsyDAG
Number of students in each class?
Z = (mean1  mean2)/standard error (SE) of difference between means
SEdiff = √(SEmean1^2 + SEmean2^2)
SEm = SD/√n
If only one SD is provided, you can use just that to determine SEdiff.
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of the Z score.
Respond to this Question
Similar Questions

English expression
Hana Middle School This is our school. It's 37 years old. There are 780 students and 34 teachers. We have a computer center and a library. We have a gym and a music room, too. Our Classroom This is our classroom. There are 40 students … 
AED
comparing and contrasting approaches for teaching English language arts in a constructivist classroom and in a traditional classroom. Which approach do you prefer? 
AED
Post your response to the following: The introduction of calculators and computers into the mathematics classroom has made it faster and easier for students to complete difficult problems. Technology should not, however, replace the … 
AED
How do classroom management issues differ, depending on the subject matter? 
Teaching as a Profession
Assume you are a teacher who would like to address a technology issue at your school. Many of the students' textbooks provide Web links for engaging enrichment activities. Each classroom has five computers, but there is only one computer … 
math
Read the following scenario, and formulate the response you might give the parent; share your response, and explain your reasoning: A new math teacher at your school is questioning your use of manipulatives in the classroom. They think … 
English
What is in the classroom? 1. There is a blackboard in the classroom. 2. There are lots of lockers in the classroom. 3. There are chairs and desks in the classroom. 4. There are many school bags in the classroom. Good job! What else 
English
Q1: What is there in the classroom? Q2: What's there in the classroom? 
Statistics
A school experiments with two teaching approaches for mathematics. In one classroom the material is taught using lectures only. In the other classroom lectures are mixed in with the use of manipulatives, computers, and collaborative … 
Technology in the classroom
What is the ideal computer arrangement to use when you want to integrate computers directly into the classroom curriculum?