Homework Help is Here – Start Your Trial Now!
Math
Statistics
What is the random variable for this question

What is the random variable for this question

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question

What is the random variable for this question

A researcher is testing the effect preschool has on the development of young children—are children who spend more time away from their mothers more or less likely to show developmental problems in kindergarten? Using a standardized scale, the average rating of behavioral problems in kindergarten children is 36.6 with a standard deviation of 8. A random sample of 15 kindergarten children who had spent at least 20 hours per week in child care during the previous year produced the scores shown in the data. Test at 0.01 level of significance that children who spend more time away from their mothers are more likely to show developmental problems in kindergarten. Scores: 38, 39, 42, 43, 48, 44, 38, 36, 42, 37, 36, 47, 48, 38, 41
Transcribed Image Text:A researcher is testing the effect preschool has on the development of young children—are children who spend more time away from their mothers more or less likely to show developmental problems in kindergarten? Using a standardized scale, the average rating of behavioral problems in kindergarten children is 36.6 with a standard deviation of 8. A random sample of 15 kindergarten children who had spent at least 20 hours per week in child care during the previous year produced the scores shown in the data. Test at 0.01 level of significance that children who spend more time away from their mothers are more likely to show developmental problems in kindergarten. Scores: 38, 39, 42, 43, 48, 44, 38, 36, 42, 37, 36, 47, 48, 38, 41
Expert Solution
Step 1

Our aim is to state the random variable 

 

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS