b) Explain why this study can be analyzed using inference of two sample means. Select all that apply. O A. The sample sizes are large (both greater than or equal to 30). B. The sample sizes are not more than 5% of the population. O c. The samples can be reasonably assumed to be random. D. The population is given to be normally distributed. O E. The samples are independent.

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

just the last part i sent the sample data as well. thank you

i
sample data
Community
College Transfer
No Transfer
256
1131
Sample mean time to
graduate, in years
Sample standard
5.31
4.28
1.177
1.017
deviation time to
graduate, in years
Transcribed Image Text:i sample data Community College Transfer No Transfer 256 1131 Sample mean time to graduate, in years Sample standard 5.31 4.28 1.177 1.017 deviation time to graduate, in years
A researcher with the Department of Education followed a cohort of students who graduated from high school in a certain year, monitoring the progress the students
made toward completing a bachelor's degree. One aspect of his research was to determine whether students who first attended community college took longer to attain
a bachelor's degree than those who immediately attended and remained at a 4-year institution. The data in the table attached below summarize the results of his study.
Complete parts a) through e) below.
Click here to view the sample data.
Click here to view Student's t-distribution table.
a) What is the response variable in this study? What is the explanatory variable?
O A. The response variable is the use of community college or not. The explanatory variable is the time to graduate.
B. The response variable is the time to graduate. The explanatory variable is the use of community college or not.
O C. The response variable is the number of students. The explanatory variable is the time to graduate.
O D. The response variable is the time to graduate. The explanatory variable is the number of students.
b) Explain why this study can be analyzed using inference of two sample means. Select all that apply.
O A. The sample sizes are large (both greater than or equal to 30).
O B. The sample sizes are not more than 5% of the population.
O C. The samples can be reasonably assumed to be random.
O D. The population is given to be normally distributed.
O E. The samples are independent.
Transcribed Image Text:A researcher with the Department of Education followed a cohort of students who graduated from high school in a certain year, monitoring the progress the students made toward completing a bachelor's degree. One aspect of his research was to determine whether students who first attended community college took longer to attain a bachelor's degree than those who immediately attended and remained at a 4-year institution. The data in the table attached below summarize the results of his study. Complete parts a) through e) below. Click here to view the sample data. Click here to view Student's t-distribution table. a) What is the response variable in this study? What is the explanatory variable? O A. The response variable is the use of community college or not. The explanatory variable is the time to graduate. B. The response variable is the time to graduate. The explanatory variable is the use of community college or not. O C. The response variable is the number of students. The explanatory variable is the time to graduate. O D. The response variable is the time to graduate. The explanatory variable is the number of students. b) Explain why this study can be analyzed using inference of two sample means. Select all that apply. O A. The sample sizes are large (both greater than or equal to 30). O B. The sample sizes are not more than 5% of the population. O C. The samples can be reasonably assumed to be random. O D. The population is given to be normally distributed. O E. The samples are independent.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Data Collection, Sampling Methods, and Bias
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
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