A researcher chose a random sample of 102 Facebook users from her department's participant pool. She administered the NPI-16 (a short measure of narcissism) to each participant, and she also recorded how many Facebook friends each one had. Her results showed that mean number of Facebook friends was 250 with a standard deviation of 100, and the mean NPI-16 score was 5 with a standard deviation of 2. The correlation between NPI-16 scores and number of Facebook friends was r = .1. Compute the lower limit of the 95% confidence interval for b for the regression equation that predicts NPI-scores from number of Facebook friends.
A researcher chose a random sample of 102 Facebook users from her department's participant pool. She administered the NPI-16 (a short measure of narcissism) to each participant, and she also recorded how many Facebook friends each one had. Her results showed that mean number of Facebook friends was 250 with a standard deviation of 100, and the mean NPI-16 score was 5 with a standard deviation of 2. The correlation between NPI-16 scores and number of Facebook friends was r = .1. Compute the lower limit of the 95% confidence interval for b for the regression equation that predicts NPI-scores from number of Facebook friends.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
please answer the question below to 4 decimal places
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 2 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman