Homework Help is Here – Start Your Trial Now!
Math
Statistics
fill blanks

fill blanks

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
See similar textbooks
icon
Related questions
Question

fill blanks.

A school district is deciding whether or not to adopt a new social skills curriculum. Three classrooms are randomly selected as test sites for the curriculum. To obtain a measure of student improvement, students in the three classrooms are tested on their social skills before and after the curriculum is implemented. The social skills test has 25 possible points. The post-implementation scores for the students in the first classroom are shown in the following table: 22 21 16 18 15 23 17 24 20 19 22 11 Calculate the sample size, n; the total sum, EX; and the sample mean, M. ΣΧ - M = The school district decides it will be easier to understand the scores if they are converted to a 10-point scale. This requires that each score be divided by 2.50. Calculate the new n, EX, and M. ΣΧ M =
Transcribed Image Text:A school district is deciding whether or not to adopt a new social skills curriculum. Three classrooms are randomly selected as test sites for the curriculum. To obtain a measure of student improvement, students in the three classrooms are tested on their social skills before and after the curriculum is implemented. The social skills test has 25 possible points. The post-implementation scores for the students in the first classroom are shown in the following table: 22 21 16 18 15 23 17 24 20 19 22 11 Calculate the sample size, n; the total sum, EX; and the sample mean, M. ΣΧ - M = The school district decides it will be easier to understand the scores if they are converted to a 10-point scale. This requires that each score be divided by 2.50. Calculate the new n, EX, and M. ΣΧ M =
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
SEE MORE TEXTBOOKS